A173390 n-th difference between consecutive natural noncomposite numbers = n-th difference between consecutive prime numbers.

1, 3, 16, 37, 40, 47, 55, 56, 74, 103, 108, 111, 119, 130, 161, 165, 185, 188, 195, 200, 219, 240, 272, 273, 292, 340, 359, 388, 420, 427, 465, 466, 509, 521, 554, 600, 606, 622, 630, 634, 668, 683, 684, 703, 710, 711, 734, 762, 792, 814, 822, 823, 830, 831

Offset: 1

Author

Juri-Stepan Gerasimov, Feb 17 2010

Keywords

• nonn

Comments

Numbers n such that A075526(n) = A001223(n).

Essentially the same as A066875. - R. J. Mathar, Feb 21 2010

Crossrefs

Cf. A001223, A075526.

Formula

A075526(a(n)) = A001223(a(n)).