A002531 - cp's OEIS frontend

A002531 a(2n) = a(2n-1) + a(2n-2), a(2n+1) = 2a(2n) + a(2*n-1); a(0) = a(1) = 1.

n	a(n)
0	1
1	1
2	2
3	5
4	7
5	19
6	26
7	71
8	97
9	265
10	362
11	989
12	1351
13	3691
14	5042
15	13775
16	18817
17	51409
18	70226
19	191861
20	262087
21	716035
22	978122
23	2672279
24	3650401
25	9973081
26	13623482
27	37220045
28	50843527
29	138907099
30	189750626
31	518408351
32	708158977
33	1934726305

[1, 1, 2, 5, 7, 19, 26, 71, 97, 265, 362, 989, 1351, 3691, 5042, 13775, 18817, 51409, 70226, 191861, 262087, 716035, 978122, 2672279, 3650401, 9973081, 13623482, 37220045, 50843527, 138907099, 189750626, 518408351, 708158977, 1934726305]

cp's OEIS Frontend

A002531 a(2n) = a(2n-1) + a(2n-2), a(2n+1) = 2a(2n) + a(2*n-1); a(0) = a(1) = 1.

Table of values

List of values

cp's OEIS Frontend

A002531 a(2*n) = a(2*n-1) + a(2*n-2), a(2*n+1) = 2*a(2*n) + a(2*n-1); a(0) = a(1) = 1.

Table of values

List of values

A002531 a(2n) = a(2n-1) + a(2n-2), a(2n+1) = 2a(2n) + a(2*n-1); a(0) = a(1) = 1.