A031535 - OEIS

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A031535

Numbers k such 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 37.

1371, 1387, 1399, 1411, 1419, 1423, 1427, 1439, 1447, 1451, 1459, 1467, 1471, 1483, 1487, 1499, 1511, 1519, 5480, 5504, 5512, 5536, 5608, 5632, 5672, 5728, 5760, 5792, 5800, 5824, 5856, 5864, 5920, 5952, 5960, 5984, 6048, 6056, 6080, 12327, 12399

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OFFSET

1,1

LINKS

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

CROSSREFS

Sequence in context: A251562 A059082 A178485 * A031715 A135819 A371191

Adjacent sequences: A031532 A031533 A031534 * A031536 A031537 A031538

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved