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.

A229929 Number of nX3 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value 2-x(i,j).

Table of values

n a(n)
1 3
2 115
3 1889
4 33119
5 575757
6 10015447
7 174306687
8 3033162257
9 52780116071
10 918441159087
11 15982039040815
12 278107289563015
13 4839412932483379
14 84211817278578727
15 1465390522949952937
16 25499620386183396001

List of values

[3, 115, 1889, 33119, 575757, 10015447, 174306687, 3033162257, 52780116071, 918441159087, 15982039040815, 278107289563015, 4839412932483379, 84211817278578727, 1465390522949952937, 25499620386183396001]

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

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