# A017178 (b-file synthesized from sequence entry) 0 1 1 1000000 2 47045881 3 481890304 4 2565726409 5 9474296896 6 27680640625 7 68719476736 8 151334226289 9 304006671424 10 567869252041 11 1000000000000 12 1677100110841 13 2699554153024 14 4195872914689 15 6327518887936