

A112930


a(n) = order of nth term of A112926 among squarefree integers.


6



3, 4, 5, 7, 9, 10, 13, 14, 17, 19, 21, 25, 28, 30, 32, 34, 38, 39, 43, 46, 47, 51, 53, 57, 62, 63, 65, 68, 69, 72, 79, 82, 85, 87, 93, 94, 97, 101, 104, 106, 110, 111, 118, 119, 122, 123, 131, 140, 142, 143, 146, 150, 151, 155, 159, 163, 167, 168, 171, 173
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OFFSET

1,1


LINKS

Michael De Vlieger and Diana Mecum, Table of n, a(n) for n = 1..10000 (first 450 terms from Diana Mecum)


EXAMPLE

The 5th term of A112926 is 13 and 13 is the 9th squarefree integer (with 1 counted as the first squarefree integer). So a(5) = 9.


MATHEMATICA

With[{k = 120, s = Select[Range[10^4], SquareFreeQ]}, Flatten@ Array[Position[s, SelectFirst[Range[Prime@ # + 1, Prime@ # + k], SquareFreeQ]] &, 60]] (* Michael De Vlieger, Aug 16 2017 *)


CROSSREFS

Cf. A061400, A112925, A112926, A112928, A112929.
Sequence in context: A189665 A156246 A136014 * A224985 A282808 A260401
Adjacent sequences: A112927 A112928 A112929 * A112931 A112932 A112933


KEYWORD

nonn


AUTHOR

Leroy Quet, Oct 06 2005


EXTENSIONS

More terms from Diana L. Mecum, Jun 13 2007


STATUS

approved



