A251139 Number of distinct prime factors of A098548(n).

0, 1, 1, 1, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 3, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 3, 1, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 3

Offset

1,6

Comments

a(n) = A001221(A098548(n)).

Links

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

Prog

(Haskell)
a251139 = a001221 . fromIntegral . a098548

Crossrefs

Cf. A001221, A098548, A251138, A251141.

Sequence in context: A026498 A140685 A055666 * A195061 A064130 A129139

Adjacent sequences: A251136 A251137 A251138 * A251140 A251141 A251142

Keyword

nonn

Author

Reinhard Zumkeller, Nov 30 2014

Status

approved