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A176874 Minimal nonnegative integer that cannot be represented as the sum of an m-gonal and a k-gonal 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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified December 5 17:16 EST 2022. Contains 358588 sequences. (Running on oeis4.)