# A092960 (b-file synthesized from sequence entry) 1 1 2 4 3 36 4 16 5 900 6 64 7 15876 8 256 9 47524 10 1024 11 386884 12 4096 13 67076100 14 16384 15 21921124 16 65536 17 17179344900 18 262144 19 274875809796 20 1048576 21 148371336100 22 4194304 23 9206236135684 24 16777216 25 1167694198801 26 67108864 27 367640742081600 28 268435456 29 3836162239297600