# A052280 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 12 4 43 5 106 6 321 7 787 8 1960 9 4354 10 9386 11 18790 12 36362 13 66789 14 118936 15 203840 16 340195 17 551192 18 873343 19 1351457 20 2052221 21 3056798 22 4480565 23 6462678 24 9194098 25 12902867 26 17892986 27 24524478 28 33265476 29 44666016 30 59426834 31 78364873 32 102502765 33 133024660 34 171390035 35 219278224