# A294693 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 6 4 21 5 73 6 238 7 722 8 2054 9 5541 10 14323 11 35788 12 87043 13 207201 14 484772 15 1118334 16 2550164 17 5759101 18 12899521 19 28689880 20 63419177 21 139435017 22 305102778 23 664755562 24 1442788402 25 3120497429 26 6727583999 27 14461863108 28 31004177695 29 66303416497 30 141465316864 31 301184381814 32 639949891424