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A152484 Odd numbers which are not the sum of an even semiprime and an odd semiprime. 2
1, 3, 5, 7, 9, 11, 17, 33 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

No more terms < 10^9. Conjectured to be complete.

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

33 is in this sequence because no even semiprime and odd semiprime sum to 33. 35 is not in this sequence because the sum of 10 (even semiprime) and 25 (odd semiprime) is 35.

CROSSREFS

Cf. A001358, A046315, A100484, A152482, A152483.

Sequence in context: A050842 A143447 A318777 * A071643 A039578 A033032

Adjacent sequences:  A152481 A152482 A152483 * A152485 A152486 A152487

KEYWORD

fini,nonn

AUTHOR

Donovan Johnson, Dec 06 2008

STATUS

approved

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Last modified April 22 22:19 EDT 2021. Contains 343197 sequences. (Running on oeis4.)