A239673 Record values in A239656 (the first differences of sphenic numbers).

12, 24, 27, 28, 33, 35, 43, 44, 46, 48, 50

Offset

1,1

Comments

a(n) = A239656(A239674(n)).

Links

Table of n, a(n) for n=1..11.

Prog

(Haskell)
a239673 n = a239673_list !! (n-1)
(a239673_list, a239674_list) = unzip $ (12, 1) : f 1 12 a239656_list where
   f i v (q:qs) | q > v = (q, i) : f (i + 1) q qs
                | otherwise = f (i + 1) v qs
-- Reinhard Zumkeller, Mar 23 2014

Crossrefs

Cf. A007304, A215231, A005250.

Sequence in context: A119588 A167994 A065303 * A208158 A361155 A108902

Adjacent sequences: A239670 A239671 A239672 * A239674 A239675 A239676

Keyword

nonn,more

Author

Reinhard Zumkeller, Mar 23 2014

Status

approved