A097162 - cp's OEIS frontend

A097162 a(n) = Sum_{k=0..n} C(floor((n+1)/2),floor((k+1)/2))*2^k.

n	a(n)
0	1
1	3
2	7
3	21
4	37
5	123
6	187
7	681
8	937
9	3663
10	4687
11	19341
12	23437
13	100803
14	117187
15	520401
16	585937
17	2667543
18	2929687
19	13599861
20	14648437
21	69047883
22	73242187
23	349433721
24	366210937
25	1763945823
26	1831054687
27	8886837981
28	9155273437
29	44702625363

[1, 3, 7, 21, 37, 123, 187, 681, 937, 3663, 4687, 19341, 23437, 100803, 117187, 520401, 585937, 2667543, 2929687, 13599861, 14648437, 69047883, 73242187, 349433721, 366210937, 1763945823, 1831054687, 8886837981, 9155273437, 44702625363]

cp's OEIS Frontend

A097162 a(n) = Sum_{k=0..n} C(floor((n+1)/2),floor((k+1)/2))*2^k.

Table of values

List of values