A024495 - cp's OEIS frontend

A024495 a(n) = C(n,2) + C(n,5) + ... + C(n, 3*floor(n/3)+2).

n	a(n)
0	0
1	0
2	1
3	3
4	6
5	11
6	21
7	42
8	85
9	171
10	342
11	683
12	1365
13	2730
14	5461
15	10923
16	21846
17	43691
18	87381
19	174762
20	349525
21	699051
22	1398102
23	2796203
24	5592405
25	11184810
26	22369621
27	44739243
28	89478486
29	178956971
30	357913941
31	715827882
32	1431655765
33	2863311531
34	5726623062

[0, 0, 1, 3, 6, 11, 21, 42, 85, 171, 342, 683, 1365, 2730, 5461, 10923, 21846, 43691, 87381, 174762, 349525, 699051, 1398102, 2796203, 5592405, 11184810, 22369621, 44739243, 89478486, 178956971, 357913941, 715827882, 1431655765, 2863311531, 5726623062]

cp's OEIS Frontend

A024495 a(n) = C(n,2) + C(n,5) + ... + C(n, 3*floor(n/3)+2).

Table of values

List of values