cp's OEIS Frontend

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.

A281550 Number of 2 X 2 matrices with all elements in 0..n such that the sum of the elements is prime.

Table of values

n a(n)
0 0
1 10
2 46
3 114
4 234
5 458
6 826
7 1370
8 2090
9 3010
10 4174
11 5658
12 7534
13 9930
14 12954
15 16662
16 21074
17 26242
18 32246
19 39182
20 47186
21 56386
22 66874
23 78798
24 92290
25 107434
26 124282
27 142942
28 163550
29 186266
30 211250
31 238626
32 268526
33 301134
34 336610
35 375086
36 416678
37 461454
38 509434
39 560662
40 615182
41 673106

List of values

[0, 10, 46, 114, 234, 458, 826, 1370, 2090, 3010, 4174, 5658, 7534, 9930, 12954, 16662, 21074, 26242, 32246, 39182, 47186, 56386, 66874, 78798, 92290, 107434, 124282, 142942, 163550, 186266, 211250, 238626, 268526, 301134, 336610, 375086, 416678, 461454, 509434, 560662, 615182, 673106]

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

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