OFFSET
0,3
LINKS
Alois P. Heinz, Rows n = 0..9, flattened
EXAMPLE
The third set partition is {1,2}, 21 in base factorial is 5, so a(3) = 5.
Triangle begins:
0;
1;
3, 5;
9, 15, 11, 17, 23;
33, 57, 39, 63, 87, 35, 59, 83, 41, 65, 89, 47, 71, 95, 119;
MAPLE
b:= proc(n, m, t) option remember; `if`(n=0, [0], [seq(map(
x-> x+j*t!, b(n-1, max(m, j), t+1))[], j=1..m+1)])
end:
T:= n-> b(n, 0, 1)[]:
seq(T(n), n=0..5); # Alois P. Heinz, Apr 04 2016
CROSSREFS
KEYWORD
AUTHOR
Franklin T. Adams-Watters, Jun 28 2006
STATUS
approved