A031524 that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 26.

678, 686, 694, 706, 718, 722, 734, 758, 766, 782, 1524, 1533, 1569, 1623, 1641, 1659, 1662, 1668, 1689, 1713, 1731, 1761, 2708, 2716, 2732, 2740, 2764, 2788, 2796, 2804, 2812, 2828, 2836, 2844, 2860, 2876, 2892, 2908, 2924, 2932, 2940, 2956, 2972, 2988

Offset

1,1

Links

Table of n, a(n) for n=1..44.

Crossrefs

Sequence in context: A144381 A097773 A248887 * A158385 A251836 A251830

Adjacent sequences: A031521 A031522 A031523 * A031525 A031526 A031527

Keyword

nonn

Author

David W. Wilson

Status

approved