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.

A375157 The number of pairs of 3x3 matrices with elements from 0 to n such that the matrix product results in each element being the concatenation of the corresponding terms in base n.

Table of values

n a(n)
2 2
3 43
4 462
5 458
6 4980
7 1887
8 18200
9 13405
10 37007
11 10508
12 200957
13 19554
14 125883
15 151020
16 420079
17 51500
18 852186
19 77301
20 1196863
21 494117
22 644747
23 152723
24 4745046
25 516750
26 1171643
27 1378716
28 3862900
29 352253
30 8755257
31 448846
32 7422697
33 2422746
34 3053960
35 2745778

List of values

[2, 43, 462, 458, 4980, 1887, 18200, 13405, 37007, 10508, 200957, 19554, 125883, 151020, 420079, 51500, 852186, 77301, 1196863, 494117, 644747, 152723, 4745046, 516750, 1171643, 1378716, 3862900, 352253, 8755257, 448846, 7422697, 2422746, 3053960, 2745778]

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

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