A031533 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 35.

1227, 1231, 1251, 1259, 1279, 1283, 1291, 1303, 1307, 1319, 1327, 1331, 1343, 1347, 1367, 4904, 4992, 5000, 5024, 5032, 5088, 5120, 5152, 5216, 5224, 5248, 5280, 5288, 5312, 5376, 5408, 5416, 5440, 5472, 11031, 11103, 11175, 11319, 11379, 11391, 11463

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Crossrefs

Sequence in context: A046177 A031748 A031658 * A031713 A259998 A046958

Adjacent sequences: A031530 A031531 A031532 * A031534 A031535 A031536

Keyword

nonn

Author

David W. Wilson

Status

approved