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A137253
Semiprimes (A001358) which are not the sum of two semiprimes.
0
4, 6, 9, 22, 33
OFFSET
1,1
COMMENTS
Apparently the list is complete.
CROSSREFS
Cf. A001358.
Sequence in context: A115681 A257842 A239307 * A035135 A046338 A118690
KEYWORD
fini,full,nonn
AUTHOR
Zak Seidov, Mar 11 2008
STATUS
approved