# A248870 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 3 4 8 5 23 6 62 7 181 8 513 9 1513 10 4476 11 13483 12 40933 13 125845 14 389769 15 1217590 16 3828775 17 12115966 18 38546124 19 123238296 20 395725493 21 1275733730 22 4127339091 23 13396443708 24 43610621823 25 142354979662 26 465838195260 27 1527905193504 28 5022061115901 29 16539625666670 30 54571760414658