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A031582 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 84. 0
7058, 7074, 7078, 7094, 7106, 7118, 7122, 7138, 7142, 7158, 7166, 7174, 7214, 7234, 7246, 7262, 7282, 7286, 7294, 7298, 7302, 7318, 7334, 7342, 7346, 7382, 7394, 15879, 15909, 15924, 15951, 15969, 15987, 16041, 16053, 16062, 16149, 16161, 16197, 16206 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..40.

CROSSREFS

Sequence in context: A071131 A238520 A230975 * A063057 A235194 A034230

Adjacent sequences:  A031579 A031580 A031581 * A031583 A031584 A031585

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified December 8 16:34 EST 2021. Contains 349596 sequences. (Running on oeis4.)