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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A356442 a(n) is the least positive even number that is the unordered sum of two primes congruent mod 10 in exactly n ways.

Table of values

n a(n)
0 2
1 4
2 26
3 86
4 126
5 174
6 264
7 324
8 396
9 456
10 546
11 594
12 624
13 876
14 966
15 984
16 924
17 954
18 1326
19 1344
20 1386
21 1512
22 1596
23 1638
24 1848
25 1764
26 2046
27 2226
28 2838
29 2574
30 2706
31 2604
32 2772
33 2436
34 3366
35 3066
36 2964
37 3432
38 3894
39 3738
40 3234
41 3696
42 3654
43 4074
44 4446
45 4158
46 4368
47 4494
48 4788
49 5016
50 4746
51 5754
52 4914

List of values

[2, 4, 26, 86, 126, 174, 264, 324, 396, 456, 546, 594, 624, 876, 966, 984, 924, 954, 1326, 1344, 1386, 1512, 1596, 1638, 1848, 1764, 2046, 2226, 2838, 2574, 2706, 2604, 2772, 2436, 3366, 3066, 2964, 3432, 3894, 3738, 3234, 3696, 3654, 4074, 4446, 4158, 4368, 4494, 4788, 5016, 4746, 5754, 4914]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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