A166478 Minimum positive integer solution t of equation n=x*(x+1)/(t*(t+1)) where n is a nonsquare integer (see A000037).

2, 1, 2, 1, 2, 5, 1, 3, 2, 3, 5, 1, 12, 6, 4, 3, 1, 2, 9, 19, 2, 10, 1, 5, 4, 5, 237, 9, 14, 2, 30, 15, 10, 2, 6, 5, 6, 84, 1, 3, 20, 41, 3, 2, 5, 14, 209, 1, 6, 2, 11, 230, 13, 23, 27, 3, 56, 1, 24, 14, 5, 2, 8, 7, 8, 1634, 11, 6, 2, 1, 35, 71, 4, 36, 24, 5, 18, 12, 3, 9, 8, 1, 2, 6, 14, 17

Offset

2,1

Links

Table of n, a(n) for n=2..87.

Example

For n=14, t=5 gives corresponding value x=20 since 14=20*21/(5*6).

Crossrefs

Cf. A000037, A166477.

Sequence in context: A197945 A374336 A099986 * A050325 A332510 A001314

Adjacent sequences: A166475 A166476 A166477 * A166479 A166480 A166481

Keyword

nonn

Author

Carmine Suriano, Oct 14 2009

Extensions

Deleted a 1 between 2 and 30. - R. J. Mathar, Oct 23 2010

Status

approved