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A249044 Composite self-numbers. 2
9, 20, 42, 64, 75, 86, 108, 110, 121, 132, 143, 154, 165, 176, 187, 198, 209, 222, 244, 255, 266, 288, 299, 310, 312, 323, 334, 345, 356, 378, 400, 411, 413, 424, 435, 446, 468, 490, 501, 512, 514, 525, 536, 558, 580, 591, 602, 615, 626, 637, 648, 670, 681, 692, 703, 714, 716, 738, 749, 760, 771, 782 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
REFERENCES
D. R. Kaprekar, The Mathematics of the New Self Numbers, Privately Printed, 311 Devlali Camp, Devlali, India, 1963.
LINKS
D. R. Kaprekar, The Mathematics of the New Self Numbers [annotated and scanned]
PROG
(Haskell)
a249044 n = a249044_list !! (n-1)
a249044_list = filter ((== 0) . a010051') $ tail a003052_list
-- Reinhard Zumkeller, Oct 31 2014
CROSSREFS
Sequence in context: A146680 A143704 A128153 * A109805 A345727 A332372
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Oct 30 2014
STATUS
approved

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Last modified May 28 01:34 EDT 2024. Contains 372900 sequences. (Running on oeis4.)