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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.

A387342 Expansion of 1/(1 - 6*x + x^2)^(7/2).

Table of values

n a(n)
0 1
1 21
2 280
3 3024
4 28854
5 253638
6 2103024
7 16689816
8 128014887
9 955485531
10 6974119152
11 49965080256
12 352366829724
13 2451595670748
14 16858071545664
15 114737706591984
16 773866620578205
17 5177539121330961
18 34391021091689416
19 226956883258736400
20 1488970185631858930

List of values

[1, 21, 280, 3024, 28854, 253638, 2103024, 16689816, 128014887, 955485531, 6974119152, 49965080256, 352366829724, 2451595670748, 16858071545664, 114737706591984, 773866620578205, 5177539121330961, 34391021091689416, 226956883258736400, 1488970185631858930]

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

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