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.

A274752 Number of 5Xn 0..2 arrays with no element equal to any value at offset (-1,-2) (0,-1) or (-1,0) and new values introduced in order 0..2.

Table of values

n a(n)
1 8
2 81
3 610
4 4967
5 40242
6 327123
7 2661918
8 21656459
9 176259458
10 1434313078
11 11673115263
12 94995850464
13 773101634059
14 6291606309132
15 51202379223709
16 416693699123591
17 3391131540449104
18 27597636527429286
19 224594629125220765

List of values

[8, 81, 610, 4967, 40242, 327123, 2661918, 21656459, 176259458, 1434313078, 11673115263, 94995850464, 773101634059, 6291606309132, 51202379223709, 416693699123591, 3391131540449104, 27597636527429286, 224594629125220765]

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

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