A131093 - cp's OEIS frontend

A131093 a(1)=1, a(n) = a(n-1) + sum of odd numbers which are among the first (n-1) terms of the sequence.

n	a(n)
1	1
2	2
3	3
4	7
5	18
6	29
7	69
8	178
9	287
10	683
11	1762
12	2841
13	6761
14	17442
15	28123
16	66927
17	172658
18	278389
19	662509
20	1709138
21	2755767
22	6558163
23	16918722
24	27279281
25	64919121
26	167478082
27	270037043
28	642633047
29	1657862098
30	2673091149

[1, 2, 3, 7, 18, 29, 69, 178, 287, 683, 1762, 2841, 6761, 17442, 28123, 66927, 172658, 278389, 662509, 1709138, 2755767, 6558163, 16918722, 27279281, 64919121, 167478082, 270037043, 642633047, 1657862098, 2673091149]

cp's OEIS Frontend

A131093 a(1)=1, a(n) = a(n-1) + sum of odd numbers which are among the first (n-1) terms of the sequence.

Table of values

List of values