A112930 a(n) = order of n-th term of A112926 among squarefree integers.

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

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