A167909 Differences between consecutive single (or isolated) numbers A167706.
2, 2, 6, 6, 5, 7, 7, 5, 5, 6, 7, 7, 5, 7, 4, 6, 8, 5, 6, 5, 14, 4, 7, 12, 7, 6, 4, 6, 7, 12, 6, 13, 12, 5, 5, 7, 11, 6, 6, 7, 7, 5, 11, 14, 5, 5, 14, 6, 11, 5, 6, 8, 6, 6, 4, 6, 8, 4, 8, 11, 12, 7, 4, 6, 8, 5, 5, 12, 8, 4, 8, 4, 6, 13, 19, 6, 10, 6, 7, 7, 10, 6, 7, 7, 6, 5, 13, 11, 5, 6, 7, 13, 4, 6, 8, 10
Offset: 1
Keywords
Examples
a(1)=4-2=2, a(2)=6-4=2, a(3)=12-6=6.
Crossrefs
Cf. A167706.
Extensions
Corrected at 3 or more placed by R. J. Mathar, May 30 2010