A141653 Composites of the form n/(p(n)-p(n-1)), where p(n)=n-th prime.

4, 9, 4, 8, 18, 21, 22, 4, 25, 15, 16, 35, 12, 10, 42, 45, 24, 18, 55, 57, 20, 33, 36, 38, 39, 40, 27, 28, 86, 87, 30, 46, 52, 105, 108, 16, 38, 20, 62, 63, 133, 27, 46, 28, 72, 76, 51, 154, 52, 158, 20, 162, 55, 21, 172, 58, 177, 60, 93, 187, 189, 98, 198, 40, 203, 102, 104, 70, 112

Offset

1,1

Comments

Entries may be repeated and are shown in order of increasing generator n.

Links

Table of n, a(n) for n=1..69.

Example

n=8: 8/(p(8)-p(8-1))=8/(19-17)=4=a(1).
n=18: 18/(p(18)-p(18-1))=18/(761-59)=9=a(2).
n=24: 24/(p(24)-p(24-1))=24/(89-83)=4=a(3).
n=32: 32/(p(32)-p(32-1))=32/(131-127)=8=a(4).
n=36: 36/(p(36)-p(36-1))=36/(151-149)=18=a(5).

Crossrefs

Cf. A000040, A002808.

Sequence in context: A068950 A021673 A224299 * A336051 A071793 A010714

Adjacent sequences: A141650 A141651 A141652 * A141654 A141655 A141656

Keyword

nonn

Author

Juri-Stepan Gerasimov, Sep 13 2008

Extensions

Corrected and extended by R. J. Mathar, Sep 26 2008

Status

approved