# A034621 (b-file synthesized from sequence entry) 0 1 1 0 2 396 3 23232 4 411642 5 3871296 6 23845140 7 111025728 8 425115900 9 1376240448 10 3926829456 11 10279543104 12 24414551634 13 54188082432 14 114524816472 15 227600201664 16 431763472602 17 798975505152 18 1407866535900