# A145680 (b-file synthesized from sequence entry) 2 6 3 2 4 3 5 4 6 5 7 216 8 7 9 8 10 9 11 5292000 12 11 13 10584000 14 13 15 4991499040640000 16 165375 17 16 18 17 19 235270656 20 19 21 101867327360000 22 8107610881081625211441398582431641600000 23 19235716742537891017605454376709022095843377283072000000 24 23 25 552063590295800832 26 25