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A077625 Largest term in periodic part of continued fraction expansion of square root of -1+2^n. 0
1, 2, 4, 6, 10, 14, 22, 30, 44, 62, 90, 126, 180, 254, 362, 510, 724, 1022, 1448, 2046, 2896, 4094, 5792, 8190, 11584, 16382, 23170, 32766, 46340, 65534, 92680, 131070 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..32.

MATHEMATICA

Table[Max[Last[ContinuedFraction[Sqrt[ -1+2^u]]]], {u, 1, 32}]

CROSSREFS

Cf. A077624-A077635.

Sequence in context: A001747 A048670 A239951 * A027383 A280611 A138016

Adjacent sequences:  A077622 A077623 A077624 * A077626 A077627 A077628

KEYWORD

nonn

AUTHOR

Labos Elemer, Nov 13 2002

STATUS

approved

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Last modified October 20 17:57 EDT 2018. Contains 316398 sequences. (Running on oeis4.)