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A120339 a(n) = 3abc, where (a,b,c) is a Markoff triple. The first Markoff triple considered is (1,2,5) and the ordering is increasing. 0
30, 195, 870, 1326, 9078, 29406, 37830, 62211, 188355, 426390, 998790, 1756950, 2922510, 8430270, 20031171, 33929310, 41996670, 57206526, 82401006, 137295678, 216148803, 941038566, 1152597606, 1418915886, 1879906755, 2668548675, 3870146310, 6449974275, 9365063430, 18263765550, 39154389150, 44208781350 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

Tom Ace, Markoff numbers.

Simone Severini, Homepage.

CROSSREFS

Cf. A002559.

Sequence in context: A249002 A249467 A309924 * A319334 A064247 A125340

Adjacent sequences: A120336 A120337 A120338 * A120340 A120341 A120342

KEYWORD

nonn

AUTHOR

Simone Severini, Jun 22 2006

EXTENSIONS

Corrected and extended by T. D. Noe, Jan 28 2011

STATUS

approved

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Last modified March 27 22:37 EDT 2023. Contains 361575 sequences. (Running on oeis4.)