Fast "exotic addition" a o b = [ a[1]+b[1] , a[1]*b[2]+a[2]*b[1] ]
1, 2, 4, 8, 12, 24, 30, 64, 72, 120, 130, 288, 300, 420, 434, 1024, 1040, 1296, 1314
1 seqfan posts
Sat Nov 27 16:00:30 CET 2010 [seqfan] Searching for associative rational functions