A173400 n-th difference between consecutive primes=n-th difference between consecutive nonnegative nonprimes.

1, 3, 7, 20, 26, 33, 43, 49, 52, 81, 116, 140, 176, 265, 288, 313, 320, 323, 373, 377, 395, 398, 405, 408, 486, 492, 530, 555, 567, 592, 671, 681, 772, 805, 849, 874, 884, 931, 936, 1016, 1030, 1149, 1204, 1324, 1347, 1406, 1464, 1550, 1621, 1639, 1707, 1712

Offset: 1

Author

Juri-Stepan Gerasimov, Feb 17 2010

Keywords

• nonn
• easy
• less

Comments

Numbers n such that A001223(n)=A054546(n).

Crossrefs

Cf. A001223, A075526, A173390, A173401, A029707.

Formula

A001223(a(n))=A054546(a(n)).

Extensions

Extended by Charles R Greathouse IV, Mar 25 2010