A119262 - cp's OEIS frontend

A119262 Number of B-trees of order infinity with n leaves, where a(n) = Sum_{k=1..floor(n/2)} a(k)C(n-k-1,n-2k) for n >= 2, with a(0)=0, a(1)=1.

n	a(n)
0	0
1	1
2	1
3	1
4	2
5	3
6	5
7	8
8	14
9	25
10	46
11	85
12	158
13	294
14	548
15	1022
16	1908
17	3567
18	6683
19	12556
20	23669
21	44781
22	85046
23	162122
24	310157
25	595322
26	1146057
27	2212004
28	4278908
29	8292738
30	16097018
31	31286456
32	60873574
33	118543329
34	231009934
35	450434739
36	878687665

[0, 1, 1, 1, 2, 3, 5, 8, 14, 25, 46, 85, 158, 294, 548, 1022, 1908, 3567, 6683, 12556, 23669, 44781, 85046, 162122, 310157, 595322, 1146057, 2212004, 4278908, 8292738, 16097018, 31286456, 60873574, 118543329, 231009934, 450434739, 878687665]

cp's OEIS Frontend

A119262 Number of B-trees of order infinity with n leaves, where a(n) = Sum_{k=1..floor(n/2)} a(k)C(n-k-1,n-2k) for n >= 2, with a(0)=0, a(1)=1.

Table of values

List of values

cp's OEIS Frontend

A119262 Number of B-trees of order infinity with n leaves, where a(n) = Sum_{k=1..floor(n/2)} a(k)*C(n-k-1,n-2*k) for n >= 2, with a(0)=0, a(1)=1.

Table of values

List of values

A119262 Number of B-trees of order infinity with n leaves, where a(n) = Sum_{k=1..floor(n/2)} a(k)C(n-k-1,n-2k) for n >= 2, with a(0)=0, a(1)=1.