# A295254 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 31 4 352 5 5341 6 101824 7 2341291 8 63092992 9 1950837241 10 68093599744 11 2648776394551 12 113633946898432 13 5330308817264341 14 271416230974603264 15 14910196369733535811 16 879003840976919068672 17 55354496206857969062641 18 3708594029795800700944384 19 263391744037123969891925071