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A118126 Lucky numbers of increasing gaps. 0
1, 3, 15, 51, 171, 745, 1057, 3507, 23205, 50779, 51475, 97113, 241887, 593727, 636291, 1661215, 6010095, 6100953, 8825911, 22032619, 24058237, 71730273, 84577003, 98797723, 119871675, 255510487, 380154649, 404917765, 704823889, 910302427 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Record "Lucky" number gaps in A031884.

LINKS

Table of n, a(n) for n=1..30.

MATHEMATICA

lst = Range[1, 10^6, 2]; i = 2; While[ i <= (len = Length@lst) && (k = lst[[i]]) <= len, lst = Drop[lst, {k, len, k}]; i++ ]; lst2 = {}; d = 0; Do[a = t[[n + 1]] - t[[n]]; If[a > d, d = a; AppendTo[lst, t[[n]]]], {n, 5286237}]; lst2

CROSSREFS

Cf. A000959, A031884.

Sequence in context: A043005 A165746 A248122 * A282464 A284663 A231747

Adjacent sequences:  A118123 A118124 A118125 * A118127 A118128 A118129

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, May 12 2006

EXTENSIONS

a(25)-a(29) from Donovan Johnson, Oct 23 2010

a(30) from Donovan Johnson, Jun 20 2011

STATUS

approved

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Last modified October 24 05:38 EDT 2021. Contains 348217 sequences. (Running on oeis4.)