A115730 - cp's OEIS frontend

A115730 a(n) = a(n-3) + A001654(n-1) with a(0)=0, a(1)=0 and a(2)=1.

n	a(n)
0	0
1	0
2	1
3	2
4	6
5	16
6	42
7	110
8	289
9	756
10	1980
11	5184
12	13572
13	35532
14	93025
15	243542
16	637602
17	1669264
18	4370190
19	11441306
20	29953729
21	78419880
22	205305912
23	537497856
24	1407187656
25	3684065112
26	9645007681
27	25250957930
28	66107866110

[0, 0, 1, 2, 6, 16, 42, 110, 289, 756, 1980, 5184, 13572, 35532, 93025, 243542, 637602, 1669264, 4370190, 11441306, 29953729, 78419880, 205305912, 537497856, 1407187656, 3684065112, 9645007681, 25250957930, 66107866110]

cp's OEIS Frontend

A115730 a(n) = a(n-3) + A001654(n-1) with a(0)=0, a(1)=0 and a(2)=1.

Table of values

List of values