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.

A323121 Number of compositions of n where the difference between largest and smallest parts equals four.

Table of values

n a(n)
4 0
5 0
6 2
7 3
8 12
9 23
10 61
11 132
12 294
13 639
14 1377
15 2922
16 6178
17 12953
18 27021
19 56106
20 116030
21 239090
22 491202
23 1006361
24 2056755
25 4194230
26 8536023
27 17340787
28 35168957
29 71217347
30 144012394
31 290835635
32 586637532
33 1181960546
34 2378920014
35 4783326807
36 9609050910
37 19286596636

List of values

[0, 0, 2, 3, 12, 23, 61, 132, 294, 639, 1377, 2922, 6178, 12953, 27021, 56106, 116030, 239090, 491202, 1006361, 2056755, 4194230, 8536023, 17340787, 35168957, 71217347, 144012394, 290835635, 586637532, 1181960546, 2378920014, 4783326807, 9609050910, 19286596636]

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

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