# A337471 (b-file synthesized from sequence entry) 1 1 2 3 3 15 4 9 5 105 6 45 7 1155 8 27 9 225 10 315 11 15015 12 135 13 255255 14 3465 15 1575 16 81 17 4849845 18 675 19 111546435 20 945 21 17325 22 45045 23 3234846615 24 405 25 11025 26 765765 27 3375 28 10395 29 100280245065 30 4725 31 3710369067405 32 243 33 225225 34 14549535 35 121275 36 2025 37 152125131763605 38 334639305 39 3828825 40 2835 41 6541380665835015 42 51975 43 307444891294245705 44 135135