A033706 Values of k associated with A033705.

3, 4, 5, 3, 3, 16, 38, 9, 75, 11, 149, 186, 3, 260, 297, 9, 1589, 531, 131, 1475, 514, 41139, 21604940, 65359479, 170677592, 933706818, 5378862, 806321563, 360633274, 199660579, 3220611916266, 63890006966, 975514583945, 8944083

Offset

1,1

Links

Table of n, a(n) for n=1..34.

M. Keith, On Repdigit Polygonal Numbers, J. Integer Sequences, Vol. 1, 1998, #6.

Example

A033705(1) = 6, and 6 is triangular (3 sides), so a(1)=3.
A033705(2) = 9, and 9 is square (4 sides), so a(2)=4.

Crossrefs

Cf. A033705, A033707.

Sequence in context: A337535 A163874 A165565 * A354597 A121890 A330740

Adjacent sequences: A033703 A033704 A033705 * A033707 A033708 A033709

Keyword

nonn

Author

Mike Keith

Status

approved