# A083072 (b-file synthesized from sequence entry) 0 1 1 4 2 29 3 286 4 3511 5 51668 6 888889 7 17538454 8 390892451 9 9720791092 10 267004296901 11 8031916155134 12 262709978263279 13 9285541905849316 14 352765522430193905 15 14337731083770642838 16 620867368421052631579