# A114311 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 3 4 18 5 110 6 705 7 5019 8 40292 9 362844 10 3628755 11 39916745 12 479001534 13 6227020722 14 87178291109 15 1307674367895 16 20922789887880 17 355687428095864 18 6402373705727847 19 121645100408831829 20 2432902008176639810 21 51090942171709439790 22 1124000727777607679769