# A148190 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 12 5 30 6 99 7 293 8 1044 9 3407 10 12855 11 44919 12 176474 13 649372 14 2629712 15 10070299 16 41769656 17 165069542 18 698089371 19 2829957804 20 12160768699 21 50345664661 22 219252800095 23 923848427883 24 4069175264385 25 17404407118104 26 77409162199404 27 335367168975910 28 1504255075382674 29 6589914030388130