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A116359 Numbers that can be written as sum of products of two successive primes. 2
6, 12, 15, 18, 21, 24, 27, 30, 33, 35, 36, 39, 41, 42, 45, 47, 48, 50, 51, 53, 54, 56, 57, 59, 60, 62, 63, 65, 66, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A116357(a(n)) > 0; complement of A116358.

LINKS

Table of n, a(n) for n=1..67.

EXAMPLE

45 = 2*3 + 2*3 + 2*3 + 2*3 + 2*3 + 3*5 =

= 3*5 + 3*5 + 3*5, therefore 45 is a term: A116357(45)=2.

CROSSREFS

Sequence in context: A129512 A259366 A196391 * A141698 A306711 A290965

Adjacent sequences:  A116356 A116357 A116358 * A116360 A116361 A116362

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Feb 12 2006

STATUS

approved

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Last modified July 17 16:38 EDT 2019. Contains 325107 sequences. (Running on oeis4.)