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A139387 First gap of length at least n in A007951, lower end. 1
2, 11, 133, 497, 4963, 34486, 68978, 14877929, 6186632564, 6186632564 (list; graph; refs; listen; history; text; internal format)
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

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Last modified May 25 20:58 EDT 2020. Contains 334597 sequences. (Running on oeis4.)