# A025575 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 3 5 8 6 13 7 40 8 65 9 211 10 343 11 1148 12 1866 13 6369 14 10351 15 35816 16 58201 17 203424 18 330525 19 1164228 20 1891454 21 6703372 22 10889622 23 38785840 24 63002765 25 225325940 26 365989685 27 1313494396 28 2133343150 29 7679038865 30 12471457095 31 45006411960 32 73091197335