# A067269 (b-file synthesized from sequence entry) 1 1 2 3 3 6 4 10 5 55 6 66 7 300 8 325 9 666 10 1035 11 1485 12 1891 13 61776 14 103740 15 109746 16 112575 17 190653 18 340725 19 1026028 20 1264845 21 3000025 22 3002475 23 3592540 24 3670695 25 37840650 26 60000535 27 61577253 28 65008503 29 1001393128 30 1432436050 31 1560756385