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.

A335634 Number of ordered ways of writing the n-th n-gonal number as a sum of n nonzero n-gonal numbers.

Table of values

n a(n)
0 1
1 1
2 1
3 0
4 1
5 30
6 180
7 700
8 3780
9 11844
10 50610
11 325820
12 5803380
13 126594910
14 2114901789
15 28282722650
16 323420067880
17 3190581939996
18 29336527986960
19 245438739897312
20 1967485926594030
21 16000631392009320
22 184418174847183508
23 4054670001158799616
24 111835386569787369559

List of values

[1, 1, 1, 0, 1, 30, 180, 700, 3780, 11844, 50610, 325820, 5803380, 126594910, 2114901789, 28282722650, 323420067880, 3190581939996, 29336527986960, 245438739897312, 1967485926594030, 16000631392009320, 184418174847183508, 4054670001158799616, 111835386569787369559]

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

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