# A078253 (b-file synthesized from sequence entry) 1 1 2 5 3 37 4 303 5 10101 6 16835 7 1010101 8 2020202 9 12345679 10 101010101 11 2662993572 12 10101010101 13 0 14 1010101010101 15 35016835016835 16 101010101010101 17 0 18 5611672278338945 19 0 20 1010101010101010101 21 12025012025012025012