# A053038 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 16 5 32 6 128 7 512 8 4096 9 16384 10 2048 11 8192 12 65536 13 16384 14 65536 15 8388608 16 134217728 17 8388608 18 8388608 19 16777216 20 2097152 21 8388608 22 268435456 23 4398046511104 24 70368744177664 25 67108864 26 67108864 27 67108864 28 68719476736