cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A163998 Primes p having the same parity as the number of partitions of p.

Original entry on oeis.org

2, 3, 5, 7, 13, 17, 23, 29, 37, 41, 43, 53, 61, 67, 71, 73, 83, 89, 107, 127, 139, 157, 173, 181, 193, 199, 211, 223, 229, 233, 239, 251, 257, 263, 269, 277, 281, 283, 293, 311, 313, 331, 349, 367, 373, 389, 401, 421, 433, 443, 457, 461, 463, 467, 479, 491, 499
Offset: 1

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Author

Omar E. Pol, Aug 09 2009

Keywords

Comments

Except the first term, primes with an odd number of partitions.
Primes in A194798. - Omar E. Pol, Mar 17 2012

Examples

			7 is in the sequence because the number of partitions of 7 is equal to 15 and both 7 and 15 have the same parity.
		

Crossrefs

Programs

  • Mathematica
    Select[Prime[Range[100]], Mod[PartitionsP[#] - #, 2] == 0 &] (* T. D. Noe, Jan 30 2012 *)

Extensions

More terms from D. S. McNeil, May 10 2010