# A146400 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 7 7 21 8 51 9 261 10 1539 11 11759 12 111585 13 1296125 14 18399415 15 335874781 16 7824897067 17 229077144211 18 8419643660275 19 387472393043501 20 22360944601180667