A094208 Least vampire number with n fang pairs.
1260, 125460, 13078260, 16758243290880, 24959017348650
Offset: 1
Examples
a(2) is the smallest number which can be written in 2 ways as the product of two numbers with half as many digits and not both ending in 0: 125460 = 204*615 = 246*510. - _Jens Kruse Andersen_, Jun 14 2014
Links
- J. K. Andersen, Vampire Numbers
Extensions
Typo in Cf. to A014575 fixed by Jens Kruse Andersen, Jun 14 2014