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.

A208405 Number of nX5 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.

Table of values

n a(n)
1 51
2 41914
3 40883360
4 40039156736
5 39216100214432
6 38410047476679936
7 37620564383817645696
8 36847308431734650845696
9 36089946042522268966513152
10 35348150537672718536490582016
11 34621601954234065647421901637632

List of values

[51, 41914, 40883360, 40039156736, 39216100214432, 38410047476679936, 37620564383817645696, 36847308431734650845696, 36089946042522268966513152, 35348150537672718536490582016, 34621601954234065647421901637632]

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

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