# A087354 (b-file synthesized from sequence entry) 1 1 2 49 3 144 4 1444 5 11449 6 1119364 7 36144144 8 251444449 9 991494144 10 4914991449 11 149991994944 12 149991994944 13 98191114994449 14 118194491449441 15 1991164114941444 16 9141411499911441 17 119499194999141136