A027305 - cp's OEIS frontend

A027305 a(n) = Sum_{k=0..floor((n+1)/2)} (k+1) * A008315(n, k).

n	a(n)
0	1
1	3
2	5
3	13
4	24
5	58
6	111
7	257
8	500
9	1126
10	2210
11	4882
12	9632
13	20980
14	41531
15	89497
16	177564
17	379438
18	754014
19	1600406
20	3184016
21	6720748
22	13382710
23	28117498
24	56026984
25	117254268
26	233765636
27	487589572
28	972504704
29	2022568168

[1, 3, 5, 13, 24, 58, 111, 257, 500, 1126, 2210, 4882, 9632, 20980, 41531, 89497, 177564, 379438, 754014, 1600406, 3184016, 6720748, 13382710, 28117498, 56026984, 117254268, 233765636, 487589572, 972504704, 2022568168]

cp's OEIS Frontend

A027305 a(n) = Sum_{k=0..floor((n+1)/2)} (k+1) * A008315(n, k).

Table of values

List of values