A256564 Smallest prime factor of A166133(n).

1, 2, 2, 3, 2, 7, 2, 5, 2, 11, 2, 3, 2, 3, 2, 13, 3, 2, 19, 2, 17, 2, 23, 2, 3, 2, 3, 2, 5, 3, 2, 37, 2, 5, 2, 3, 2, 31, 2, 29, 2, 41, 2, 43, 2, 3, 2, 47, 2, 7, 2, 3, 2, 53, 2, 5, 2, 3, 2, 59, 2, 61, 2, 3, 2, 5, 2, 67, 2, 3, 2, 79, 2, 7, 2, 3, 2, 73, 2, 71

Offset

1,2

Comments

a(n) = A020639(A166133(n)).

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Prog

(Haskell)
a256564 = a020639 . a166133

Crossrefs

Cf. A166133, A020639, A244080.

Sequence in context: A156098 A294933 A015996 * A092976 A084705 A051886

Adjacent sequences: A256561 A256562 A256563 * A256565 A256566 A256567

Keyword

nonn,look

Author

Reinhard Zumkeller, Apr 02 2015

Status

approved