# A068848 (b-file synthesized from sequence entry) 0 11 1 83 2 641 3 51203 4 40961 5 327689 6 2621447 7 20971529 8 167772161 9 1342177283 10 10737418247 11 85899345923 12 687194767367 13 54975581388811 14 43980465111043 15 3518437208883211 16 28147497671065609 17 22517998136852483