A352006 - cp's OEIS frontend

A352006 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/2)} 2^k * a(k) * a(n-2*k-1).

n	a(n)
0	1
1	1
2	1
3	3
4	5
5	11
6	21
7	59
8	117
9	283
10	597
11	1467
12	3125
13	7387
14	16149
15	39931
16	87541
17	207643
18	463061
19	1107515
20	2473909
21	5819739
22	13132437
23	31080571
24	70236533
25	164315035
26	373572693
27	875121339
28	1991869237
29	4639482331
30	10599986709
31	24765957371
32	56617082101

[1, 1, 1, 3, 5, 11, 21, 59, 117, 283, 597, 1467, 3125, 7387, 16149, 39931, 87541, 207643, 463061, 1107515, 2473909, 5819739, 13132437, 31080571, 70236533, 164315035, 373572693, 875121339, 1991869237, 4639482331, 10599986709, 24765957371, 56617082101]

cp's OEIS Frontend

A352006 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/2)} 2^k * a(k) * a(n-2*k-1).

Table of values

List of values