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.

A242843 Number of compositions of n with difference 3 between the number of odd parts and the number of even parts, both counted without multiplicity.

Table of values

n a(n)
9 6
10 12
11 26
12 54
13 104
14 194
15 357
16 590
17 1012
18 1814
19 3137
20 5990
21 11400
22 22864
23 46715
24 97788
25 206639
26 438654
27 930092
28 1969748
29 4147412
30 8696479
31 18137872
32 37638970
33 77738200
34 159832004
35 327315948
36 667736364
37 1357690562
38 2751972885
39 5562836882
40 11216402410

List of values

[6, 12, 26, 54, 104, 194, 357, 590, 1012, 1814, 3137, 5990, 11400, 22864, 46715, 97788, 206639, 438654, 930092, 1969748, 4147412, 8696479, 18137872, 37638970, 77738200, 159832004, 327315948, 667736364, 1357690562, 2751972885, 5562836882, 11216402410]

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

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