# A034733 (b-file synthesized from sequence entry) 1 1 2 4 3 8 4 20 5 32 6 80 7 128 8 288 9 528 10 1088 11 2048 12 4288 13 8192 14 16640 15 32896 16 66112 17 131072 18 263424 19 524288 20 1050880 21 2097664 22 4198400 23 8388608 24 16786944 25 33554688 26 67125248 27 134219776 28 268469248 29 536870912 30 1073812480 31 2147483648