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

1,1

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

Prog

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

Crossrefs

Cf. A000040, A000290, A064233, A064272.

Sequence in context: A200654 A208665 A256762 * A266857 A014561 A034502

Adjacent sequences: A064280 A064281 A064282 * A064284 A064285 A064286

Keyword

nonn

Author

Robert G. Wilson v, Sep 24 2001

Extensions

More terms from Vladeta Jovovic, Sep 25 2001

More terms from Sean A. Irvine, Jun 25 2023

Status

approved