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.

A251973 Number of (n+1)X(7+1) 0..3 arrays with nondecreasing sum of every two consecutive values in every row and column.

Table of values

n a(n)
1 1500625
2 294122500
3 57648010000
4 4067643585600
5 287012931399936
6 10332465530397696
7 371968759094317056
8 8266815890892066816
9 183725765411866546176
10 2835563471280083174400
11 43763160717460467360000

List of values

[1500625, 294122500, 57648010000, 4067643585600, 287012931399936, 10332465530397696, 371968759094317056, 8266815890892066816, 183725765411866546176, 2835563471280083174400, 43763160717460467360000]

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

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