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.

A129922 Number of 3-Carlitz compositions of n (or, more generally p-Carlitz compositions, p > 1), i.e., words b_1^{i_1}b_2^{i_2}...b_k^{i_k} such that the b_j's and i_j's are positive integers for which Sum_{j=1..k} i_j * b_j = n and, for all j, i_j < p and if b_j = b_(j+1) then i_j + i_(j+1) is not equal to p.

Table of values

n a(n)
0 1
1 1
2 3
3 4
4 12
5 22
6 51
7 101
8 225
9 465
10 1008
11 2111
12 4528
13 9560
14 20402
15 43222
16 92018
17 195256
18 415243
19 881758
20 1874288
21 3981318
22 8460906
23 17975132
24 38196045
25 81152769
26 172436680
27 366376845
28 778476016
29 1654054258
30 3514494256
31 7467412436
32 15866507485
33 33712418692
34 71630875356
35 152198161794

List of values

[1, 1, 3, 4, 12, 22, 51, 101, 225, 465, 1008, 2111, 4528, 9560, 20402, 43222, 92018, 195256, 415243, 881758, 1874288, 3981318, 8460906, 17975132, 38196045, 81152769, 172436680, 366376845, 778476016, 1654054258, 3514494256, 7467412436, 15866507485, 33712418692, 71630875356, 152198161794]

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

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