A027298 - cp's OEIS frontend

A027298 a(n) = Sum_{k=0..m} (k+1) * A026022(n, k), where m=n for n=0,1 and m = floor((n+3)/2) for n >= 2.

n	a(n)
0	1
1	3
2	8
3	20
4	43
5	101
6	208
7	472
8	958
9	2126
10	4288
11	9368
12	18835
13	40673
14	81632
15	174704
16	350266
17	744290
18	1491232
19	3150424
20	6309246
21	13265138
22	26557408
23	55610960
24	111311068
25	232279836
26	464856832
27	967155824
28	1935314563

[1, 3, 8, 20, 43, 101, 208, 472, 958, 2126, 4288, 9368, 18835, 40673, 81632, 174704, 350266, 744290, 1491232, 3150424, 6309246, 13265138, 26557408, 55610960, 111311068, 232279836, 464856832, 967155824, 1935314563]

cp's OEIS Frontend

A027298 a(n) = Sum_{k=0..m} (k+1) * A026022(n, k), where m=n for n=0,1 and m = floor((n+3)/2) for n >= 2.

Table of values

List of values