OFFSET
1,3
EXAMPLE
1; 1, 2; 1, 2, 7; 1, 2, 3, 8, 39; 1, 2, 3, 9, 10, 52, 311;
MAPLE
with(combinat); rows_upto_u := proc(u) local a, n; a := []; for n from 1 to u do a := [op(a), op(map(divby, sort(map(list_in_base_b, partition(n), (n+1))), n))]; od; RETURN(a); end;
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Antti Karttunen, Dec 13 1999
STATUS
approved