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Search: id:A163576
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| A163576 |
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Near-factorions: equal to the sum of the factorials of all but one of their digits in base 10. |
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+0
2
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OFFSET
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1,1
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REFERENCES
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Clifford A. Pickover, "Wonders of Numbers: Adventures in Mathematics, Mind, and Meaning", Oxford University Press, 2003, p. 357.
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EXAMPLE
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24 = 4!, 5761 = 7! + 6! + 1!, 5762 = 7! + 6! + 2!
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PROGRAM
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(Other) (MATLAB) f = factorial(0:9); n = 0; for m = 1:2177280, d = f(mod(floor(m*10.^(-floor(log10(m)):0)), 10)+1); if any(sum(d)-d==m), n = n+1; a(n) = m; end, end
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CROSSREFS
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Cf. A014080.
Sequence in context: A003787 A002555 A002198 this_sequence A145408 A088616 A158042
Adjacent sequences: A163573 A163574 A163575 this_sequence A163577 A163578 A163579
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KEYWORD
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base,fini,full,nonn,bref
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AUTHOR
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Berend Jan van der Zwaag (b.j.vanderzwaag(AT)utwente.nl), Jul 31 2009
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