# A037564 (b-file synthesized from sequence entry) 1 2 2 16 3 113 4 793 5 5553 6 38872 7 272106 8 1904744 9 13333209 10 93332465 11 653327257 12 4573290800 13 32013035602 14 224091249216 15 1568638744513 16 10980471211593 17 76863298481153 18 538043089368072 19 3766301625576506