The OEIS is supported by the many generous donors to the OEIS Foundation.

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

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