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A167395
Smallest single or isolated composite>n-th single or isolated prime.
0
4, 30, 42, 60, 60, 72, 102, 102, 102, 102, 138, 138, 138, 180, 180, 180, 180, 228, 228, 240, 270, 270, 270, 282, 312, 312, 348, 348, 348, 420, 420, 420, 420, 420, 420, 420, 420, 420, 420, 462, 462, 462, 462, 522, 522, 522, 522, 522, 522, 522, 570, 570, 570
OFFSET
1,1
CROSSREFS
Sequence in context: A164820 A022387 A108559 * A327434 A268037 A248528
KEYWORD
nonn
AUTHOR
EXTENSIONS
Entries checked by R. J. Mathar, May 30 2010
STATUS
approved