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A171523
a(n) = n*(n-th nonprime number).
1
1, 8, 18, 32, 45, 60, 84, 112, 135, 160, 198, 240, 273, 308, 360, 400, 442, 486, 532, 600, 672, 726, 782, 840, 900, 988, 1053, 1120, 1218, 1320, 1395, 1472, 1584, 1666, 1750, 1836, 1924, 2052, 2145, 2240, 2337, 2436, 2580, 2728, 2835, 2944, 3055, 3168, 3332
OFFSET
1,2
COMMENTS
a(n) = A000027(n) * A018252(n).
Complement of A171524(n). [From Jaroslav Krizek, Dec 13 2009]
EXAMPLE
a(1)= 1*1 = 1, a(2)= 2*4 = 8, a(3)= 3*6 = 18, ...
CROSSREFS
Sequence in context: A092163 A100592 A028563 * A120091 A211526 A211528
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Dec 11 2009
STATUS
approved