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A107988 Numbers of the form (4^i)*(11^j), with i, j >= 0. 13
1, 4, 11, 16, 44, 64, 121, 176, 256, 484, 704, 1024, 1331, 1936, 2816, 4096, 5324, 7744, 11264, 14641, 16384, 21296, 30976, 45056, 58564, 65536, 85184, 123904, 161051, 180224, 234256, 262144, 340736, 495616, 644204, 720896, 937024, 1048576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

PROG

(Haskell)

import Data.Set (singleton, deleteFindMin, insert)

a107988 n = a107988_list !! (n-1)

a107988_list = f $ singleton (1, 0, 0) where

   f s = y : f (insert (4 * y, i + 1, j) $ insert (11 * y, i, j + 1) s')

         where ((y, i, j), s') = deleteFindMin s

-- Reinhard Zumkeller, May 15 2015

CROSSREFS

Cf. A025617, A025618, A025619, A025620, A025621, A107462, A003596, A003597, A003598, A003599, A108090.

Sequence in context: A054870 A197567 A207460 * A038241 A310561 A248349

Adjacent sequences:  A107985 A107986 A107987 * A107989 A107990 A107991

KEYWORD

nonn

AUTHOR

Douglas Winston (douglas.winston(AT)srupc.com), Jun 12 2005

STATUS

approved

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Last modified May 23 07:54 EDT 2019. Contains 323508 sequences. (Running on oeis4.)