A265826 - cp's OEIS frontend

A265826 a(0) = 1, a(n) = Sum_{k=1..n} a(n-k)*ceiling(sin(k)).

n	a(n)
0	1
1	1
2	2
3	4
4	7
5	13
6	24
7	45
8	84
9	157
10	293
11	547
12	1021
13	1906
14	3558
15	6642
16	12399
17	23146
18	43208
19	80659
20	150571
21	281080
22	524709
23	979506
24	1828503
25	3413376
26	6371955
27	11894912
28	22204949
29	41451316
30	77379669
31	144449290
32	269652192
33	503375992
34	939682290

[1, 1, 2, 4, 7, 13, 24, 45, 84, 157, 293, 547, 1021, 1906, 3558, 6642, 12399, 23146, 43208, 80659, 150571, 281080, 524709, 979506, 1828503, 3413376, 6371955, 11894912, 22204949, 41451316, 77379669, 144449290, 269652192, 503375992, 939682290]

cp's OEIS Frontend

A265826 a(0) = 1, a(n) = Sum_{k=1..n} a(n-k)*ceiling(sin(k)).

Table of values

List of values