OFFSET
1,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..572
Wikipedia, Partition of a set
FORMULA
a(n) = A271466(n+5,n).
EXAMPLE
a(3) = 34: 1245678|3, 145678|23, 145678|2|3, 14567|28|3, 14568|27|3, 1456|278|3, 14578|26|3, 1457|268|3, 1458|267|3, 145|2678|3, 14678|25|3, 1467|258|3, 1468|257|3, 146|2578|3, 1478|256|3, 147|2568|3, 148|2567|3, 14|25678|3, 15678|24|3, 1567|248|3, 1568|247|3, 156|2478|3, 1578|246|3, 157|2468|3, 158|2467|3, 15|24678|3, 1678|245|3, 167|2458|3, 168|2457|3, 16|24578|3, 178|2456|3, 17|24568|3, 18|24567|3, 1|245678|3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Apr 13 2016
STATUS
approved