# A076767 (b-file synthesized from sequence entry) 0 0 1 1 2 15 3 105 4 465 5 1540 6 4186 7 9870 8 20910 9 40755 10 74305 11 128271 12 211575 13 335790 14 515620 15 769420 16 1119756 17 1594005 18 2224995 19 3051685 20 4119885 21 5483016 22 7202910 23 9350650 24 12007450 25 15265575 26 19229301 27 24015915 28 29756755 29 36598290