

A176874


Minimal nonnegative integer that cannot be represented as the sum of an mgonal and a kgonal number for any k,m less than n.


5



0, 5, 23, 62, 62, 723, 1578, 1578, 8139, 39644, 94323, 94323, 1317783, 1680515, 2025699, 3205598, 23003999, 113333163, 170717819, 1710518799, 3608109348, 16655876439, 24090452279
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OFFSET

3,2


COMMENTS

Indices of records in A176873 (with repetitions).


LINKS

Table of n, a(n) for n=3..25.
Max Alekseyev, Proof that the sequence is infinite. [Sequence Fans mailing list, Apr 26 2010.]


FORMULA

a(n) = smallest integer s such that A176873(s) >= n.


CROSSREFS

Cf. A176873, A176774.
Sequence in context: A098498 A159241 A179094 * A331987 A241765 A106956
Adjacent sequences: A176871 A176872 A176873 * A176875 A176876 A176877


KEYWORD

hard,more,nonn


AUTHOR

Vladimir Shevelev and Max Alekseyev, Apr 27 2010


EXTENSIONS

Edited by N. J. A. Sloane, Apr 29 2010
a(19)a(22) from Jon E. Schoenfield, Aug 08 2010
a(23)a(25) from Donovan Johnson, Jan 24 2011


STATUS

approved



