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.

A290919 p-INVERT of the positive integers, where p(S) = (1 - S)^4.

Table of values

n a(n)
0 4
1 18
2 72
3 271
4 976
5 3398
6 11516
7 38179
8 124272
9 398248
10 1259240
11 3935420
12 12173440
13 37314700
14 113452128
15 342426657
16 1026711724
17 3059968146
18 9069834488
19 26748151221
20 78518859336
21 229505772002
22 668173273988
23 1938126895864
24 5602502738380
25 16143099833606

List of values

[4, 18, 72, 271, 976, 3398, 11516, 38179, 124272, 398248, 1259240, 3935420, 12173440, 37314700, 113452128, 342426657, 1026711724, 3059968146, 9069834488, 26748151221, 78518859336, 229505772002, 668173273988, 1938126895864, 5602502738380, 16143099833606]

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

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