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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.

A263518 Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 filled by rows with each element moved a city block distance of 0 or 1, and rows and columns in increasing lexicographic order.

Table of values

n a(n)
1 159
2 39807
3 10791350
4 2861438066
5 769775248717
6 206581153730159
7 55588636099730695
8 14963969410163493167
9 4031070371116891657348
10 1086255512881457026146614
11 292787152002616412026152849

List of values

[159, 39807, 10791350, 2861438066, 769775248717, 206581153730159, 55588636099730695, 14963969410163493167, 4031070371116891657348, 1086255512881457026146614, 292787152002616412026152849]

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

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