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.

A297503 Number of n X 5 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1's.

Table of values

n a(n)
1 12
2 218
3 1829
4 23348
5 270845
6 3075264
7 35919085
8 414559944
9 4794512057
10 55494787360
11 641788518693
12 7424878808114
13 85894097165753
14 993622743583263
15 11494556544048474
16 132971604823085666
17 1538246171030926340

List of values

[12, 218, 1829, 23348, 270845, 3075264, 35919085, 414559944, 4794512057, 55494787360, 641788518693, 7424878808114, 85894097165753, 993622743583263, 11494556544048474, 132971604823085666, 1538246171030926340]

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

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