A201915 Each row of triangle T(n,k) has a sorted list of n values such that sigma(T(n,k)) = A007368(n).

1, 6, 11, 14, 15, 23, 42, 62, 69, 77, 30, 46, 51, 55, 71, 60, 78, 92, 123, 143, 167, 114, 135, 158, 177, 203, 209, 239, 132, 140, 182, 188, 195, 249, 287, 299, 120, 174, 184, 190, 267, 295, 319, 323, 359, 204, 220, 224, 246, 284, 286, 334, 415, 451, 503

Offset

1,2

Comments

The first and last terms of each row are given in A184393 and A184394.

Note that the integers in the 10th row have sigma(n)=504 (A180164(1)) and thus include A002025(1) and A002046(1). - Michel Marcus, Oct 22 2013

Links

T. D. Noe, Rows n = 1..100 of triangle, flattened

Example

Triangle:
1
6,    11
14,   15,  23
42,   62,  69,  77
30,   46,  51,  55,  71
60,   78,  92, 123, 143, 167
114, 135, 158, 177, 203, 209, 239
132, 140, 182, 188, 195, 249, 287, 299
120, 174, 184, 190, 267, 295, 319, 323, 359
204, 220, 224, 246, 284, 286, 334, 415, 451, 503

Crossrefs

Sequence in context: A154293 A199717 A163871 * A237606 A264935 A072540

Adjacent sequences: A201912 A201913 A201914 * A201916 A201917 A201918

Keyword

nonn,tabl

Author

T. D. Noe, Jan 24 2012

Status

approved