A108176 - cp's OEIS frontend

A108176 a(1) = 1, a(n) = (Sum_{k=1..floor(n/2)} 1/a(n + 1 - 2k))*(Product_{k=1..floor(n/2)} a(n + 1 - 2k)).

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	7
7	23
8	164
9	3786
10	620973
11	2351006074
12	1459911295051236
13	3432260322166663402961472
14	5010795611887306064313121202903094714708
15	17198354961167628388233455836547370709483687001035342768448084064

[1, 1, 1, 2, 3, 7, 23, 164, 3786, 620973, 2351006074, 1459911295051236, 3432260322166663402961472, 5010795611887306064313121202903094714708, 17198354961167628388233455836547370709483687001035342768448084064]

cp's OEIS Frontend

A108176 a(1) = 1, a(n) = (Sum_{k=1..floor(n/2)} 1/a(n + 1 - 2k))*(Product_{k=1..floor(n/2)} a(n + 1 - 2k)).

Table of values

List of values