A167911 Differences between consecutive non-single (or nonisolated) numbers A167707.

1, 2, 2, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

Offset: 1

Author

Juri-Stepan Gerasimov, Nov 15 2009

Keywords

• nonn

Examples

			a(1)=1-0=1, a(2)=3-1=2, a(3)=5-3=2, a(4)=7-5=2, a(5)=8-7=1.
		

Crossrefs

Cf. A167707.

Formula

a(n) = A167707(n+1) - A167707(n). - Jason Yuen, Oct 08 2024

Extensions

Entries checked by R. J. Mathar, May 30 2010