# A151385 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 6 5 12 6 25 7 77 8 215 9 511 10 1466 11 4610 12 12680 13 35579 14 113158 15 344542 16 997244 17 3112862 18 9956308 19 30277199 20 93800266 21 303919846 22 963863561 23 3017836845 24 9766363338 25 31766793517 26 101462348434 27 328277090248 28 1079653283803 29 3516292489624 30 11439613075930 31 37768544363774 32 124746380740174