# A356132 (b-file synthesized from sequence entry) 1 1 2 5 3 35 4 70 5 210 6 420 7 2310 8 4620 9 18480 10 32340 11 60060 12 120120 13 240240 14 720720 15 1261260 16 1141140 17 2042040 18 4084080 19 4564560 20 13693680 21 19399380 22 58198140 23 95855760 24 38798760 25 116396280 26 193993800 27 77597520 28 232792560 29 543182640 30 387987600 31 1125164040