# A148177 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 12 5 28 6 86 7 238 8 784 9 2325 10 8058 11 25360 12 90373 13 297465 14 1086446 15 3692655 16 13756875 17 48012753 18 181628315 19 647909195 20 2482768099 21 9016569288 22 34932498872 23 128802722018 24 503682591606 25 1881611341779 26 7417610261825 27 28025251640045 28 111265114651271 29 424562759910862 30 1696155023650389