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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.

A196949 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,1,0,2,3 for x=0,1,2,3,4.

Table of values

n a(n)
1 40
2 6440
3 393585
4 33344883
5 2668162530
6 215125975535
7 17331168379114
8 1396952062795238
9 112594151426879227
10 9074527226180787949
11 731362786510896873672
12 58944855804404539921648
13 4750716841801426807499533

List of values

[40, 6440, 393585, 33344883, 2668162530, 215125975535, 17331168379114, 1396952062795238, 112594151426879227, 9074527226180787949, 731362786510896873672, 58944855804404539921648, 4750716841801426807499533]

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

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