# A236626 (b-file synthesized from sequence entry) 1 2 2 8 3 36 4 104 5 300 6 864 7 2268 8 5824 9 14418 10 35760 11 85888 12 204816 13 479804 14 1113280 15 2560560 16 5836704 17 13209612 18 29690208 19 66332572 20 147350880 21 325780056 22 716862256 23 1571067072 24 3429697920 25 7461222850 26 16178111560 27 34973640108 28 75392349648