A065121 Least m such that the maximal palindrome within the period of the continued fraction for sqrt(m) is the n-th row of Pascal's triangle; or 0 if no such number exists.

3, 0, 14, 218, 164, 7316138, 42678240

Offset

0,1

Comments

A056825 is a similar sequence based on the same maximal palindrome.

Links

Table of n, a(n) for n=0..6.

Example

For n=3, continued fraction for sqrt(218) is [[14],[1,3,3,1,28]]. Maximal palindrome in period -> (1,3,3,1) is the 3rd row of Pascal's triangle.

Crossrefs

Cf. A003285, A007318.

Sequence in context: A321413 A135399 A275831 * A334824 A167339 A277936

Adjacent sequences: A065118 A065119 A065120 * A065122 A065123 A065124

Keyword

nonn,more

Author

Naohiro Nomoto, Nov 13 2001

Status

approved