A066581 Product of nonzero digits of A066547(n).
1, 6, 120, 504, 2, 60, 336, 288, 40320, 15552, 1837080, 1327104, 309657600, 393750000, 2015539200, 94097687040, 1366159011840, 54793045278720, 140587147048320, 720, 3024, 120960, 10321920, 28343520, 334430208
Offset: 1
Examples
The third term of A066547 is 456 hence a(3) = 120.
Crossrefs
Cf. A066547.
Extensions
More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 01 2003