A064283 Least number which may be expressed as the sum of a prime number and a nonzero square in exactly n different ways.

3, 6, 27, 38, 83, 167, 248, 227, 488, 398, 887, 668, 902, 908, 1238, 2012, 1448, 1748, 1592, 2537, 2672, 3902, 4457, 4703, 3632, 3713, 5843, 6233, 7052, 8333, 5297, 8888, 9602, 9092, 6368, 9908, 13187, 8153, 12473, 8777, 15923, 16463, 14528, 14852, 20807

Offset: 1

Author

Robert G. Wilson v, Sep 24 2001

Keywords

• nonn

Comments

A064272(a(n)) = n and A064272(m) <> n for m < a(n). - Reinhard Zumkeller, Mar 31 2013

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 1..100

Crossrefs

Cf. A000040, A000290, A064233, A064272.

Programs

Haskell

import Data.List (elemIndex)
import Data.Maybe (fromJust)
a064283 = (+ 2) . fromJust . (`elemIndex` a064272_list)
-- Reinhard Zumkeller, Mar 31 2013

Extensions

More terms from Vladeta Jovovic, Sep 25 2001

More terms from Sean A. Irvine, Jun 25 2023