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A140866
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Number of Niven numbers =< 10^n.
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0
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10, 33, 213, 1538, 11872, 95428, 806095, 6954793, 61574510, 553007106, 5024332415, 45975917532
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 213, pp 62, Ellipses, Paris 2008.
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LINKS
| J.-M. DeKoninck, N. Doyon, On the number of Niven numbers up to x, Fib. Quart. 41 (5) (2003) 431
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FORMULA
| a(n)=A086706(10^n).
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CROSSREFS
| Cf. A005349, A086706.
Sequence in context: A094170 A004638 A020479 * A177221 A045087 A119086
Adjacent sequences: A140863 A140864 A140865 * A140867 A140868 A140869
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KEYWORD
| more,nonn,base
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AUTHOR
| Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 20 2008
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EXTENSIONS
| a(10)-a(12) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Mar 10 2010
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