# A287298 (b-file synthesized from sequence entry) 2 1 3 1 4 225 5 576 6 38025 7 751689 8 10323369 9 355624164 10 9814072356 11 279740499025 12 8706730814089 13 23132511879129 14 11027486960232964 15 435408094460869201 16 18362780530794065025 17 48470866291337805316 18 39207739576969100808801 19 1972312183619434816475625 20 104566626183621314286288961