A242499 - cp's OEIS frontend

A242499 Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 1.

n	a(n)
1	1
2	0
3	1
4	3
5	1
6	9
7	11
8	18
9	51
10	65
11	151
12	290
13	477
14	1043
15	1835
16	3486
17	6931
18	12540
19	24607
20	46797
21	87979
22	171072
23	323269
24	619245
25	1190619
26	2264925
27	4357211
28	8343322
29	15973309
30	30711853
31	58846191
32	113027716
33	217192103
34	416964202
35	801880039
36	1541412015
37	2963997227

[1, 0, 1, 3, 1, 9, 11, 18, 51, 65, 151, 290, 477, 1043, 1835, 3486, 6931, 12540, 24607, 46797, 87979, 171072, 323269, 619245, 1190619, 2264925, 4357211, 8343322, 15973309, 30711853, 58846191, 113027716, 217192103, 416964202, 801880039, 1541412015, 2963997227]

cp's OEIS Frontend

A242499 Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 1.

Table of values

List of values