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.

A077047 Doubly restricted composition numbers: number of compositions of floor(n(n+2)/2) into exactly n positive integers each no more than n+1.

Table of values

n a(n)
0 1
1 1
2 3
3 12
4 85
5 780
6 9331
7 134512
8 2306025
9 45433800
10 1018872811
11 25506741084
12 707972099627
13 21518492021208
14 712601187601395
15 25491847538274240
16 981272544393935569
17 40392787067756440272
18 1772592132899627652691

List of values

[1, 1, 3, 12, 85, 780, 9331, 134512, 2306025, 45433800, 1018872811, 25506741084, 707972099627, 21518492021208, 712601187601395, 25491847538274240, 981272544393935569, 40392787067756440272, 1772592132899627652691]

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

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