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.

A383275 Number of compositions of n such that any part 1 can be k different colors where k is the current record having appeared in the composition.

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 14
5 42
6 134
7 454
8 1634
9 6245
10 25321
11 108779
12 494443
13 2374288
14 12024257
15 64100444
16 358948674
17 2106756217
18 12931155910
19 82823317389
20 552400947902
21 3829070637080
22 27534807426150
23 205066734143893
24 1579309451332366
25 12559941159979791
26 103013928588389695

List of values

[1, 1, 2, 5, 14, 42, 134, 454, 1634, 6245, 25321, 108779, 494443, 2374288, 12024257, 64100444, 358948674, 2106756217, 12931155910, 82823317389, 552400947902, 3829070637080, 27534807426150, 205066734143893, 1579309451332366, 12559941159979791, 103013928588389695]

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

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