1,2

First few terms of A136110 are 1,3,4,6,7,9,12,13,15,17,18,22,23,24,28,... . The first run of at least three consecutive numbers is 22,23,24. Hence a(3) = 22.

Cf. A136110, A138900, A138662.

Sequence in context: A074578 A074576 A077244 this_sequence A132595 A065204 A001393

Adjacent sequences: A138896 A138897 A138898 this_sequence A138900 A138901 A138902

nonn,more

Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Apr 03 2008