

A139387


First gap of length at least n in A007951, lower end.


1




OFFSET

1,1


COMMENTS

a(11) > 10^11.  Donovan Johnson


LINKS

Table of n, a(n) for n=1..10.


EXAMPLE

First few terms of A007951 are 1,2,4,5,7,8,10,11,14,16, ... . The first gap of length 1 is between 2 and 4, so a(1) = 2; the first gap of length 2 is between 11 and 14, so a(2) = 11.


CROSSREFS

Cf. A007951, A138845, A138900, A139386.
Sequence in context: A066382 A276030 A282855 * A041725 A330638 A296571
Adjacent sequences: A139384 A139385 A139386 * A139388 A139389 A139390


KEYWORD

nonn,more


AUTHOR

Klaus Brockhaus, Apr 17 2008


EXTENSIONS

a(8)a(10) from Donovan Johnson, Dec 27 2010


STATUS

approved



