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.

A370216 Coefficient of x^n in the expansion of ( (1+x) / (1-x^3)^3 )^n.

Table of values

n a(n)
0 1
1 1
2 1
3 10
4 49
5 151
6 532
7 2353
8 9745
9 37675
10 150851
11 624603
12 2561476
13 10426625
14 42800031
15 176797510
16 730069649
17 3016004001
18 12492387775
19 51845882845
20 215363387699
21 895504027855
22 3728271696139
23 15538300424315
24 64812978200068
25 270565786871401
26 1130394586039421

List of values

[1, 1, 1, 10, 49, 151, 532, 2353, 9745, 37675, 150851, 624603, 2561476, 10426625, 42800031, 176797510, 730069649, 3016004001, 12492387775, 51845882845, 215363387699, 895504027855, 3728271696139, 15538300424315, 64812978200068, 270565786871401, 1130394586039421]

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

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