# A093122 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 9 4 25 5 88 6 273 7 903 8 2890 9 9405 10 30349 11 98352 12 318045 13 1029587 14 3331210 15 10781001 16 34886465 17 112897544 18 365339961 19 1182271695 20 3825900650 21 12380892261 22 40065380357 23 129654340704 24 419570185125 25 1357757761723