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A137253 Semiprimes (A001358) which are not the sum of two semiprimes. 0
4, 6, 9, 22, 33 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Apparently the list is complete.
LINKS
Table of n, a(n) for n=1..5.
CROSSREFS
Cf. A001358.
Sequence in context: A115681 A257842 A239307 * A035135 A046338 A118690
Adjacent sequences: A137250 A137251 A137252 * A137254 A137255 A137256
KEYWORD
fini,full,nonn
AUTHOR
Zak Seidov, Mar 11 2008
STATUS
approved

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Last modified May 13 07:22 EDT 2024. Contains 372498 sequences. (Running on oeis4.)