A383620 - cp's OEIS frontend

A383620 Number of weak compositions of n such that the set of adjacent differences is a subset of {-1,1}.

n	a(n)
0	1
1	4
2	5
3	9
4	13
5	20
6	30
7	45
8	66
9	102
10	152
11	229
12	344
13	518
14	780
15	1180
16	1775
17	2676
18	4037
19	6088
20	9182
21	13852
22	20891
23	31512
24	47536
25	71706
26	108166
27	163172
28	246140
29	371303
30	560118
31	844943
32	1274606
33	1922767
34	2900522
35	4375493
36	6600511
37	9956990
38	15020307
39	22658428

[1, 4, 5, 9, 13, 20, 30, 45, 66, 102, 152, 229, 344, 518, 780, 1180, 1775, 2676, 4037, 6088, 9182, 13852, 20891, 31512, 47536, 71706, 108166, 163172, 246140, 371303, 560118, 844943, 1274606, 1922767, 2900522, 4375493, 6600511, 9956990, 15020307, 22658428]

cp's OEIS Frontend

A383620 Number of weak compositions of n such that the set of adjacent differences is a subset of {-1,1}.

Table of values

List of values