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A057533 Values of n for which iteration of Chowla's function loops. 3
48, 75, 92, 140, 146, 176, 195, 215, 255, 267, 287, 312, 332, 369, 386, 407, 411, 519, 527, 551, 627, 734, 744, 818, 972, 973, 984, 1027, 1050, 1078, 1096, 1149, 1175, 1185, 1387, 1408, 1472, 1474, 1535, 1575, 1648, 1651, 1784, 1792, 1880, 1888, 1891 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Chowla's function (A048050) = sum of divisors of n except 1 and n.

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..1000

PROG

(Haskell)

a057533 n = a057533_list !! (n-1)

a057533_list = filter (\z -> p z [z]) [1..] where

   p x ts = y > 0 && (y `elem` ts || p y (y:ts)) where y = a048050 x

-- Reinhard Zumkeller, Feb 09 2013

CROSSREFS

Cf. A048050.

Cf. A005276 (subsequence). - Reinhard Zumkeller, Feb 09 2013

Sequence in context: A334899 A165039 A211721 * A005276 A328370 A143722

Adjacent sequences:  A057530 A057531 A057532 * A057534 A057535 A057536

KEYWORD

nonn

AUTHOR

Asher Auel (asher.auel(AT)reed.edu), Sep 03 2000

STATUS

approved

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Last modified November 29 23:37 EST 2020. Contains 338780 sequences. (Running on oeis4.)