A329109 Numbers k such that 1/k and 1/(k+1) have repeating non-terminating decimal representations with the same length.

13, 77, 104, 158, 259, 350, 397, 1095, 1213, 1453, 1687, 1924, 2079, 2169, 2426, 2427, 2557, 2794, 2797, 3517, 3653, 3733, 4081, 4441, 4803, 5077, 5423, 5437, 6037, 6083, 6133, 6638, 7323, 7933, 8127, 9268, 9393

Offset: 1

Author

Jud McCranie, Nov 04 2019

Keywords

• nonn
• base

Comments

These are numbers k such that A051626(k) = A051626(k+1) > 0.

Examples

			1/13 and 1/14 both repeat with period 6, so 13 is in the sequence.
		

Crossrefs

Cf. A051626.