# A148778 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 8 4 23 5 75 6 242 7 797 8 2722 9 9358 10 32361 11 113558 12 401386 13 1423419 14 5080996 15 18236262 16 65633113 17 237023257 18 859125261 19 3121571670 20 11366570789 21 41490482518 22 151752532780 23 555940056833 24 2040133494268 25 7498551097214 26 27597459751318 27 101697901462645 28 375227305219404 29 1385969645879384