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A135409
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Sum of all n-digit Keith numbers.
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0
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0, 244, 939, 38842, 399158, 3185054, 8997888, 89003533, 380705305, 0, 120958456566, 909738914355, 10691161155707, 215413743487843, 1146359095715014, 11741086634604569, 186260344930883645, 586697640742217928, 22434377949474656108, 86030233471862779595
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| There are no 1-digit and 10-digit Keith numbers.
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LINKS
| Jason Earls and Eric Weisstein's World of Mathematics, Keith Number.
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EXAMPLE
| Sum of all 2-digit Keith numbers is 244.
Sum of all 3-digit Keith numbers is 939.
Sum of all 4-digit Keith numbers is 38842.
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CROSSREFS
| Cf. A007629.
Sequence in context: A044987 A201998 A031786 * A203349 A178266 A081864
Adjacent sequences: A135406 A135407 A135408 * A135410 A135411 A135412
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KEYWORD
| nonn,base
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Dec 10 2007
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EXTENSIONS
| Extended by T. D. Noe (noe(AT)sspectra.com), Mar 15 2011
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