A051852 A051851(n)/row_index_of(n).

1, 1, 2, 1, 2, 7, 1, 2, 3, 8, 39, 1, 2, 3, 9, 10, 52, 311, 1, 2, 3, 4, 10, 11, 19, 67, 68, 467, 3268, 1, 2, 3, 4, 11, 12, 13, 21, 84, 85, 94, 669, 670, 5350, 42799, 1, 2, 3, 4, 5, 12, 13, 14, 23, 24, 103, 104, 105, 114, 205, 923, 924, 934, 8304, 8305, 74734, 672605, 1, 2, 3

Offset

1,3

Links

Table of n, a(n) for n=1..69.

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

A subset of A051850 (but note the relative indexing...)

Sequence in context: A052621 A212671 A131057 * A054495 A007966 A224609

Adjacent sequences: A051849 A051850 A051851 * A051853 A051854 A051855

Keyword

easy,nonn

Author

Antti Karttunen, Dec 13 1999

Status

approved