# A113695 (b-file synthesized from sequence entry) 1 1 2 2 3 30 4 40 5 520 6 6120 7 75080 8 821920 9 9125440 10 1012882880 11 11690270720 12 127219466240 13 1377297694720 14 14982604718080 15 1512710259671040 16 16662943738757120 17 178381140013219840 18 18013061754595573760