# A120958 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 12 4 164 5 3780 6 128220 7 5962180 8 363377640 9 28109659104 10 2692076369460 11 312824482316588 12 43373419550214360 13 7074801917270302072 14 1341285553197404432856 15 292488135377674745120280