# A101904 (b-file synthesized from sequence entry) 1 1 2 6 3 21 4 70 5 223 6 706 7 2235 8 7070 9 22360 10 70710 11 223606 12 707106 13 2236067 14 7071067 15 22360679 16 70710677 17 223606797 18 707106780 19 2236067976 20 7071067811 21 22360679774 22 70710678118 23 223606797749 24 707106781186 25 2236067977499