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A249048 Self-numbers (A003052) that are multiples of 9. 4
9, 108, 198, 288, 378, 468, 558, 648, 738, 828, 918, 1098, 1188, 1278, 1368, 1458, 1548, 1638, 1728, 1818, 1917, 2007, 2088, 2178, 2268, 2358, 2448, 2538, 2628, 2718, 2817, 2907, 2997, 3078, 3168, 3258, 3348, 3438, 3528, 3618, 3717, 3807, 3897, 3987, 4068, 4158, 4248 (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)
a249048 n = a249048_list !! (n-1)
a249048_list = filter ((== 0) . flip mod 9) a003052_list
-- Reinhard Zumkeller, Oct 31 2014
CROSSREFS
Sequence in context: A316145 A365032 A039619 * A080505 A104224 A099676
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Oct 30 2014
STATUS
approved

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Last modified May 25 03:08 EDT 2024. Contains 372782 sequences. (Running on oeis4.)