# A336127 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 8 4 16 5 48 6 144 7 352 8 896 9 2432 10 7168 11 16896 12 46080 13 114688 14 303104 15 843776 16 2080768 17 5308416 18 13762560 19 34865152 20 87818240 21 241172480 22 583008256 23 1503657984 24 3762290688 25 9604956160 26 23689428992 27 60532195328 28 156397207552 29 385137770496 30 967978254336