# A321257 (b-file synthesized from sequence entry) 1 1 2 6 3 21 4 60 5 147 6 330 7 705 8 1464 9 2991 10 6054 11 12189 12 24468 13 49035 14 98178 15 196473 16 393072 17 786279 18 1572702 19 3145557 20 6291276 21 12582723 22 25165626 23 50331441 24 100663080 25 201326367 26 402652950 27 805306125 28 1610612484 29 3221225211 30 6442450674 31 12884901609 32 25769803488