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.

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

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