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.

A274748 Number of nX7 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 32
2 448
3 7858
4 143634
5 2661918
6 49475642
7 920432562
8 17123659885
9 318581114142
10 5927090659144
11 110271727008501
12 2051571144042267
13 38168848457457660
14 710119627548581257
15 13211556323824865000
16 245796923794474296948

List of values

[32, 448, 7858, 143634, 2661918, 49475642, 920432562, 17123659885, 318581114142, 5927090659144, 110271727008501, 2051571144042267, 38168848457457660, 710119627548581257, 13211556323824865000, 245796923794474296948]

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

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