A046621 First denominator and then numerator of each element to the right of the central elements of the 1/5-Pascal triangle (by row), excluding 5's.
1, 1, 1, 1, 6, 1, 1, 11, 1, 1, 23, 16, 1, 1, 39, 21, 1, 1, 1, 17, 1, 12, 26, 1, 1, 1, 29, 86, 31, 1, 1, 1, 63, 231, 117, 36, 1, 1, 546, 348, 153, 41, 1, 1, 1176, 894, 501, 194, 46, 1, 1, 1, 414, 1, 279, 1, 139, 1, 48, 51, 1, 1, 4422, 1, 693, 1, 418, 1, 187, 291, 56, 1, 1, 7887, 1
Offset: 1
Examples
1/1; 1/1 1/1; 1/1 1/5 1/1; 1/1 6/5 6/5 1/1; 1/1 11/5 12/5 11/5 1/1; 1/1 16/5 23/5 23/5 16/5 1/1; 1/1 21/5 39/5 46/5 39/5 21/5 1/1; 1/1 26/5 12/1 17/1 17/1 12/1 26/5 1/1; ...
Crossrefs
Cf. A046601.
Extensions
More terms from James Sellers, Dec 16 1999