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.

A184373 1/3 the number of (n+1)X7 0..2 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically.

Table of values

n a(n)
1 420633
2 281803871
3 185547841629
4 122443114867993
5 80778452206783159
6 53293289955084658949
7 35159890626610196979641
8 23196517518911246631354055
9 15303755709562804997482560737
10 10096556166552290137769922123373

List of values

[420633, 281803871, 185547841629, 122443114867993, 80778452206783159, 53293289955084658949, 35159890626610196979641, 23196517518911246631354055, 15303755709562804997482560737, 10096556166552290137769922123373]

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

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