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A084788 Sizes of successive increasing gaps between 3-smooth numbers. 4
1, 2, 3, 4, 6, 12, 15, 20, 30, 32, 36, 60, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 288, 324, 384, 432, 576, 648, 864, 1152, 1296, 1728, 2592, 3456, 5184, 10368, 11259, 13344, 15012, 17792, 20016, 22518, 26688, 30024, 40032, 45036, 53376 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

a(n)=A084790(n)-A084789(n); a(n)=A061987(A084791(n)).

LINKS

Eric Weisstein's World of Mathematics, Smooth Number

CROSSREFS

Cf. A003586.

Sequence in context: A128393 A057919 A102250 * A002809 A173581 A075122

Adjacent sequences:  A084785 A084786 A084787 * A084789 A084790 A084791

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 03 2003

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Last modified February 16 17:48 EST 2012. Contains 205939 sequences.