# A024737 (b-file synthesized from sequence entry) 1 3 2 1 3 1 4 3 5 9 6 27 7 84 8 261 9 810 10 2514 11 8046 12 25704 13 81975 14 261261 15 854037 16 2784540 17 9057393 18 29439855 19 97650930 20 323099676 21 1066565907 22 3517004046 23 11791407663 24 39431809098 25 131550859650 26 438453827928 27 1481254263945 28 4993010577093