A140160 - cp's OEIS frontend

A140160 a(1)=1, a(n) = a(n-1) + n^4 if n odd, a(n) = a(n-1) + n^3 if n is even.

n	a(n)
1	1
2	9
3	90
4	154
5	779
6	995
7	3396
8	3908
9	10469
10	11469
11	26110
12	27838
13	56399
14	59143
15	109768
16	113864
17	197385
18	203217
19	333538
20	341538
21	536019
22	546667
23	826508
24	840332
25	1230957
26	1248533
27	1779974
28	1801926
29	2509207
30	2536207
31	3459728
32	3492496

[1, 9, 90, 154, 779, 995, 3396, 3908, 10469, 11469, 26110, 27838, 56399, 59143, 109768, 113864, 197385, 203217, 333538, 341538, 536019, 546667, 826508, 840332, 1230957, 1248533, 1779974, 1801926, 2509207, 2536207, 3459728, 3492496]

cp's OEIS Frontend

A140160 a(1)=1, a(n) = a(n-1) + n^4 if n odd, a(n) = a(n-1) + n^3 if n is even.

Table of values

List of values