# A089264 (b-file synthesized from sequence entry) 4 3 5 6 6 17 7 42 8 102 9 242 10 564 11 1296 12 2944 13 6624 14 14784 15 32768 16 72192 17 158208 18 345088 19 749568 20 1622016 21 3497984 22 7520256 23 16121856 24 34471936 25 73531392 26 156499968 27 332398592 28 704643072 29 1491075072 30 3149922304 31 6643777536 32 13992198144