# A114410 (b-file synthesized from sequence entry) 0 1 1 3 2 6 3 16 4 37 5 147 6 420 7 2290 8 7477 9 50487 10 200910 11 1534220 12 7099871 13 61765581 14 301088574 15 2870376944 16 15554495573 17 167142509403 18 940873745772 19 11097270672382 20 66032188454581 21 807449164097111 22 5147307668890832