OFFSET
5,1
LINKS
Alois P. Heinz, Table of n, a(n) for n = 5..220
Wikipedia, Partition of a set
EXAMPLE
a(5) = 3: 135|24, 13|25|4, 15|24|3.
a(6) = 27: 1246|35, 124|36|5, 126|35|4, 1346|25, 134|26|5, 1356|24, 135|246, 135|24|6, 136|245, 13|246|5, 13|256|4, 13|25|46, 13|25|4|6, 13|26|45, 13|2|46|5, 146|235, 14|236|5, 16|235|4, 156|24|3, 15|246|3, 15|24|36, 15|24|3|6, 16|245|3, 1|246|35, 1|24|36|5, 16|25|34, 1|26|35|4.
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Mar 26 2016
STATUS
approved