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A176065
Numbers n such that n-th semiprime-2 is prime.
1
1, 3, 6, 7, 9, 11, 15, 17, 19, 24, 28, 31, 36, 37, 43, 44, 46, 53, 56, 59, 63, 69, 77, 81, 83, 85, 92, 99, 101, 109, 112, 114, 119, 122, 127, 129, 136, 139, 144, 148, 151, 152, 154, 156, 157, 170, 175, 177, 179, 180, 184, 193, 196, 197, 203, 205, 213, 219, 224, 227
OFFSET
1,2
CROSSREFS
Sequence in context: A160217 A228014 A188971 * A333552 A324929 A135412
KEYWORD
nonn
AUTHOR
EXTENSIONS
Entries checked by R. J. Mathar, Apr 25 2010
STATUS
approved