A132915 - cp's OEIS frontend

A132915 a(0)=0; a(1)=1; a(n) = Sum_{k=1..[sqrt(n)]} a(n-k) for n>=2.

n	a(n)
0	0
1	1
2	1
3	1
4	2
5	3
6	5
7	8
8	13
9	26
10	47
11	86
12	159
13	292
14	537
15	988
16	1976
17	3793
18	7294
19	14051
20	27114
21	52252
22	100711
23	194128
24	374205
25	748410
26	1469706
27	2887160
28	5673609
29	11153090
30	21931975
31	43115540
32	84761374
33	166635588
34	327597567
35	644042044
36	1288084088

[0, 1, 1, 1, 2, 3, 5, 8, 13, 26, 47, 86, 159, 292, 537, 988, 1976, 3793, 7294, 14051, 27114, 52252, 100711, 194128, 374205, 748410, 1469706, 2887160, 5673609, 11153090, 21931975, 43115540, 84761374, 166635588, 327597567, 644042044, 1288084088]

cp's OEIS Frontend

A132915 a(0)=0; a(1)=1; a(n) = Sum_{k=1..[sqrt(n)]} a(n-k) for n>=2.

Table of values

List of values