# A051185 (b-file synthesized from sequence entry) 1 2 2 6 3 40 4 1376 5 1314816 6 912818962432 7 291201248266450683035648 8 14704022144627161780744368338695925293142507520 9 12553242487940503914363982718112298267975272720808010757809032705650591023015520462677475328