A261984 - cp's OEIS frontend

A261984 Number of compositions of n such that the minimal distance between two identical parts equals two.

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	3
7	8
8	16
9	34
10	57
11	113
12	213
13	396
14	733
15	1333
16	2419
17	4400
18	7934
19	14321
20	25687
21	45947
22	82085
23	146410
24	260547
25	463021
26	821669
27	1456296
28	2578051
29	4559972
30	8057373
31	14225124
32	25096606
33	44246087
34	77958821
35	137283534
36	241626535
37	425079358
38	747501363

[0, 0, 0, 0, 1, 2, 3, 8, 16, 34, 57, 113, 213, 396, 733, 1333, 2419, 4400, 7934, 14321, 25687, 45947, 82085, 146410, 260547, 463021, 821669, 1456296, 2578051, 4559972, 8057373, 14225124, 25096606, 44246087, 77958821, 137283534, 241626535, 425079358, 747501363]

cp's OEIS Frontend

A261984 Number of compositions of n such that the minimal distance between two identical parts equals two.

Table of values

List of values