A087958 - cp's OEIS frontend

A087958 a(n) is the square of the n-th partial sum minus the n-th partial sum of the squares, divided by a(n-1), for all n>=1, starting with a(0)=1, a(1)=5.

n	a(n)
0	1
1	5
2	2
3	17
4	18
5	67
6	104
7	287
8	532
9	1289
10	2598
11	5933
12	12438
13	27639
14	59020
15	129499
16	278920
17	608397
18	1315658
19	2861929
20	6200506
21	13470635
22	29210224
23	63421623
24	137581660
25	298636305
26	647959662
27	1406286917
28	3051529598
29	6622430687

[1, 5, 2, 17, 18, 67, 104, 287, 532, 1289, 2598, 5933, 12438, 27639, 59020, 129499, 278920, 608397, 1315658, 2861929, 6200506, 13470635, 29210224, 63421623, 137581660, 298636305, 647959662, 1406286917, 3051529598, 6622430687]

cp's OEIS Frontend

A087958 a(n) is the square of the n-th partial sum minus the n-th partial sum of the squares, divided by a(n-1), for all n>=1, starting with a(0)=1, a(1)=5.

Table of values

List of values