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.

A338465 Number of ways to write 2*n as an ordered sum of n nonzero triangular numbers.

Table of values

n a(n)
0 1
1 0
2 2
3 0
4 6
5 5
6 20
7 42
8 70
9 261
10 297
11 1430
12 1584
13 7293
14 9634
15 35945
16 60150
17 176596
18 366401
19 886977
20 2150421
21 4624410
22 12205074
23 25065216
24 67616872
25 139894305
26 369551925
27 793214982
28 2011977414
29 4517758504
30 10992821055
31 25669627965
32 60531471286
33 145112506352

List of values

[1, 0, 2, 0, 6, 5, 20, 42, 70, 261, 297, 1430, 1584, 7293, 9634, 35945, 60150, 176596, 366401, 886977, 2150421, 4624410, 12205074, 25065216, 67616872, 139894305, 369551925, 793214982, 2011977414, 4517758504, 10992821055, 25669627965, 60531471286, 145112506352]

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

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