# A081126 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 16 4 53 5 206 6 817 7 3620 8 16361 9 80218 10 401501 11 2139512 12 11641885 13 66599846 14 388962953 15 2367284236 16 14700573137 17 94523836850 18 619674301621 19 4186249123808 20 28809504493061 21 203556335785342 22 1463877667140065