1,2

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

(PARI) isok(n) = bigomega(prime(n+2) - (prime(n+1)-prime(n))) == 2 \\ Michel Marcus, Jun 03 2013

Cf. A104243.

Sequence in context: A216442 A298296 A099474 * A026511 A321153 A304814

Adjacent sequences: A105045 A105046 A105047 * A105049 A105050 A105051

easy,nonn

Giovanni Teofilatto, Apr 04 2005

More terms from Rick L. Shepherd, May 18 2005

approved