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A140764
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Numbers equal to the sum of the squares of their duodecimal digit factorials.
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0
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OFFSET
| 1,2
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COMMENTS
| In other words, numbers equal to the sum of the squares of factorials of their base-12 representation digits.
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REFERENCES
| J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 37, pp 15, Ellipses, Paris 2008.
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EXAMPLE
| We have, for instance, 37 = 31_(12) = (3!)^2 + (1!)^2 and 613 = 431_(12) = (4!)^2 + (3!)^2 + (1!)^2.
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CROSSREFS
| Cf. A014080.
Sequence in context: A133998 A056217 A105464 * A156923 A104180 A010953
Adjacent sequences: A140761 A140762 A140763 * A140765 A140766 A140767
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KEYWORD
| fini,full,nonn,base
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AUTHOR
| Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 13 2008
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