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A078317 Number of divisors of n*rad(n)+1, where rad=A007947 (squarefree kernel). 3
2, 2, 4, 3, 4, 2, 6, 2, 6, 2, 4, 2, 8, 2, 4, 4, 8, 2, 4, 4, 8, 4, 8, 4, 12, 2, 4, 4, 4, 4, 8, 4, 8, 4, 4, 4, 8, 6, 4, 2, 6, 4, 12, 8, 9, 4, 16, 3, 8, 4, 4, 8, 8, 6, 8, 4, 16, 4, 4, 2, 4, 4, 6, 4, 4, 2, 8, 6, 4, 6, 4, 2, 16, 2, 4, 8, 8, 4, 4, 6, 6, 6, 16, 2, 4, 4, 8, 4, 8, 4, 8, 8, 12, 2, 4, 2, 8, 2, 12, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n)=A000005(A078310(n)).

LINKS

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

PROG

(Haskell)

a078317 = a000005 . a078310  -- Reinhard Zumkeller, Jul 23 2013

CROSSREFS

Cf. A078313, A078314, A078318.

Sequence in context: A131052 A209138 A051297 * A105016 A074747 A128248

Adjacent sequences:  A078314 A078315 A078316 * A078318 A078319 A078320

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Nov 23 2002

STATUS

approved

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Last modified October 18 20:08 EDT 2019. Contains 328197 sequences. (Running on oeis4.)