# A242026 (b-file synthesized from sequence entry) 1 0 2 12 3 48 4 240 5 960 6 4032 7 16128 8 65280 9 261120 10 1047552 11 4190208 12 16773120 13 67092480 14 268419072 15 1073676288 16 4294901760 17 17179607040 18 68719214592 19 274876858368 20 1099510579200 21 4398042316800 22 17592181850112 23 70368727400448 24 281474959933440 25 1125899839733760