# A329156 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 10 4 29 5 72 6 200 7 510 8 1364 9 3546 10 9348 11 24400 12 64090 13 167562 14 439200 15 1149360 16 3010349 17 7879832 18 20633304 19 54014950 20 141422328 21 370239300 22 969323000 23 2537696160 24 6643839400 25 17393731933 26 45537549048 27 119218684970 28 312119004990 29 817137724392 30 2139295489200 31 5600747143950