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A081313 Numbers having more than one representation as sum of a prime and an 3-smooth number. 4
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 49, 50, 51, 53, 55, 56, 57, 59, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 79, 80, 81, 82, 83, 84, 85, 86 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A081308(a(n))>1.

LINKS

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

PROG

(Haskell)

a081313 n = a081313_list !! (n-1)

a081313_list = filter ((> 1) . a081308) [1..]

-- Reinhard Zumkeller, Jul 04 2012

CROSSREFS

Cf. A000040, A003586, A081312, subsequence of A081311.

Sequence in context: A171526 A171463 A020705 * A227983 A081333 A026419

Adjacent sequences:  A081310 A081311 A081312 * A081314 A081315 A081316

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Mar 17 2003

STATUS

approved

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Last modified July 28 00:54 EDT 2021. Contains 346316 sequences. (Running on oeis4.)