# A053860 (b-file synthesized from sequence entry) 1 1 2 25 3 8065 4 15450625 5 1157871796225 6 87966277381914625 7 163854915382616600346625 8 2899292808403896778002083610625 9 409353092294744973843137037325905690625 10 1655314633158965843313074656520358690270555930625 11 8042610863521667687144051842810375934526150927428955930625