OFFSET
1,1
REFERENCES
Clifford A. Pickover, "Wonders of Numbers: Adventures in Mathematics, Mind, and Meaning", Oxford University Press, 2003, p. 357.
EXAMPLE
24 = 4!, 5761 = 7! + 6! + 1!, 5762 = 7! + 6! + 2!
PROG
(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
CROSSREFS
KEYWORD
base,fini,full,nonn,bref
AUTHOR
Berend Jan van der Zwaag (b.j.vanderzwaag(AT)utwente.nl), Jul 31 2009
STATUS
approved