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Old 2022-04-09, 20:14   #1
ATH
Einyen
 
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Default OEIS Goldbach sequences

Just noticed these 2 sequences related to the Goldbach conjecture had 67 and 69 members, but the 2 remaining values in A025019 are easily calculated from the last 2 values of A025018:
025018 and 025019

http://oeis.org/A025018/b025018.txt
http://oeis.org/A025019/b025019.txt

The 2 missing values in A025019:
68 9629
69 9781

since:
2795935116574469638 = 9629 + 2795935116574460009 (both prime)
3325581707333960528 = 9781 + 3325581707333950747 (both prime)



Code:
A025019		A025018
1 2		1 4
2 3		2 6
3 5		3 12
4 7		4 30
5 19		5 98
6 23		6 220
7 31		7 308
8 47		8 556
9 73		9 992
10 103		10 2642
11 139		11 5372
12 173		12 7426
13 211		13 43532
14 233		14 54244
15 293		15 63274
16 313		16 113672
17 331		17 128168
18 359		18 194428
19 383		19 194470
20 389		20 413572
21 523		21 503222
22 601		22 1077422
23 727		23 3526958
24 751		24 3807404
25 829		25 10759922
26 929		26 24106882
27 997		27 27789878
28 1039		28 37998938
29 1093		29 60119912
30 1163		30 113632822
31 1321		31 187852862
32 1427		32 335070838
33 1583		33 419911924
34 1789		34 721013438
35 1861		35 1847133842
36 1877		36 7473202036
37 1879		37 11001080372
38 2029		38 12703943222
39 2089		39 21248558888
40 2803		40 35884080836
41 3061		41 105963812462
42 3163		42 244885595672
43 3457		43 599533546358
44 3463		44 3132059294006
45 3529		45 3620821173302
46 3613		46 4438327672994
47 3769		47 5320503815888
48 3917		48 8342945544436
49 4003		49 10591605900482
50 4027		50 12982270197518
51 4057		51 15197900994218
52 4327		52 28998050650046
53 4519		53 46878442766282
54 4909		54 76903574497118
55 5077		55 184162477860248
56 5209		56 217361316706568
57 5569		57 389965026819938
58 6469		58 1047610575836828
59 6961		59 6253262345930828
60 7559		60 24925556008175266
61 7753		61 31284177910528922
62 8443		62 121005022304007026
63 8501		63 255329126688555994
64 8933		64 258549426916149682
65 8941		65 555274351556750822
66 9161		66 887123803077837868
67 9341		67 906030579562279642
68 9629	68 2795935116574469638
69 9781	69 3325581707333960528

Last fiddled with by ATH on 2022-04-09 at 20:24
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