# A372371 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 7 4 25 5 61 6 187 7 666 8 2137 9 6676 10 22001 11 73217 12 239923 13 789517 14 2624182 15 8729527 16 29026553 17 96790606 18 323546416 19 1082566763 20 3626148425 21 12163438539 22 40847087821 23 137294721676 24 461890741843 25 1555264438186 26 5240857508017 27 17672768973979 28 59634361740734