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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.

A264883 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,1 0,-1 -2,0 or 1,1.

Table of values

n a(n)
1 4
2 0
3 137
4 108
5 19372
6 207424
7 4747695
8 78535556
9 1314624443
10 22908798620
11 367507064798
12 6308520502938
13 101920859207417
14 1716067465404634
15 28013671881647327
16 465628347016848772
17 7646941659349897210

List of values

[4, 0, 137, 108, 19372, 207424, 4747695, 78535556, 1314624443, 22908798620, 367507064798, 6308520502938, 101920859207417, 1716067465404634, 28013671881647327, 465628347016848772, 7646941659349897210]

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

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