

A048283


For k >= a(n), there are A048284(n) numbers expressible as a sum of exactly kn kgonal numbers.


1



6, 9, 10, 13, 16, 19, 20, 22, 25, 28, 29, 31, 34, 37, 40, 41, 43, 46, 49, 52, 53, 54, 57, 58, 61, 64, 67, 68, 70, 73, 74, 75, 78, 81, 84, 86, 89, 90, 92, 93, 94, 96, 99, 102, 105, 108, 109, 110, 112, 113, 115, 118, 121, 124, 126, 129, 130, 132, 133, 136, 137, 138, 140, 143, 146, 149, 152
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OFFSET

0,1


LINKS

Table of n, a(n) for n=0..66.


EXAMPLE

For k >= 6, the 2 numbers 2k1 and 5k4 are the sum of at best k kgonal numbers. Hence a(0) = 6.
For k >= 9, the 4 numbers k1, 2k2, 4k4 and 5k5 are the sum of at best k1 kgonal numbers. Hence a(1) = 9.
For k >= 10, the 6 numbers k2, 2k3, 3k4, 4k5, 5k6 and 8k9 are the sum of at best k2 kgonal numbers. Hence a(2) = 10.


CROSSREFS

Sequence in context: A125494 A177029 A105066 * A169692 A145311 A037198
Adjacent sequences: A048280 A048281 A048282 * A048284 A048285 A048286


KEYWORD

nonn


AUTHOR

David W. Wilson


EXTENSIONS

Definition corrected by Jonathan Sondow, Jun 27 2007


STATUS

approved



