# A374709 (b-file synthesized from sequence entry) 0 0 1 1 2 20 3 132 4 512 5 1485 6 3564 7 7504 8 14336 9 25425 10 42500 11 67716 12 103680 13 153517 14 220892 15 310080 16 425984 17 574209 18 761076 19 993700 20 1280000 21 1628781 22 2049740 23 2553552 24 3151872 25 3857425 26 4684004 27 5646564 28 6761216 29 8045325 30 9517500 31 11197696 32 13107200 33 15268737 34 17706452