# A036918 (b-file synthesized from sequence entry) 1 0 2 2 3 10 4 48 5 260 6 1630 7 11742 8 95900 9 876808 10 8877690 11 98641010 12 1193556232 13 15624736140 14 220048367318 15 3317652307270 16 53319412081140 17 909984632851472 18 16436597430879730 19 313262209859119578 20 6282647653285676000 21 132266266384961600020 22 2916471173788403280462