A082288 - OEIS

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A082288

n>1 appears bigomega(n) times, where bigomega(n)=A001222(n) is the number of prime factors of n (with repetition), a(1)=1.

1, 2, 3, 4, 4, 5, 6, 6, 7, 8, 8, 8, 9, 9, 10, 10, 11, 12, 12, 12, 13, 14, 14, 15, 15, 16, 16, 16, 16, 17, 18, 18, 18, 19, 20, 20, 20, 21, 21, 22, 22, 23, 24, 24, 24, 24, 25, 25, 26, 26, 27, 27, 27, 28, 28, 28, 29, 30, 30, 30, 31, 32, 32, 32, 32, 32, 33, 33, 34, 34, 35, 35, 36, 36

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OFFSET

1,2

COMMENTS

A027746(n) divides a(n), a(n)=A027746(n) iff a(n) is prime; a(A022559(n)+1)=n.

A000040(A112798(n)) is a prime factor of a(n) for n>1. - Reinhard Zumkeller, Feb 03 2008

LINKS

Table of n, a(n) for n=1..74.

CROSSREFS

Cf. A082287.

Sequence in context: A187103 A303735 A080444 * A305397 A316627 A099801

Adjacent sequences: A082285 A082286 A082287 * A082289 A082290 A082291

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Apr 07 2003

STATUS

approved