# A324807 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 27 4 256 5 3125 6 46656 7 823543 8 16777208 9 387419832 10 9999962640 11 285309793890 12 8916009869448 13 302870744070180 14 11111793078586200 15 437883125030581230 16 18446183535139520160 17 827209994815650320160 18 39344710668752223656064 19 1978320731100920186439888