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A199715 A puzzle - explanation is not known. 1
2, 8, 2, 3, 4, 9, 4, 5, 9, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

In November 1987, an editor at the Astrophysical Journal wrote to N. J. A. Sloane with three sequences whose explanation was not known to her. She said: "As to the pedigree of these sequences, not much is known. But they are US in origin, and /not/ Hungarian".  One of the three was the number-theoretical sequence A007468. The other two are now A199714 and this sequence.

The synodic rotation period of the main-belt asteroid (6572) Carson, discovered 1938, is approximately 2.8235 hours. [Galad & Kornos] - Arkadiusz Wesolowski and Robert Israel, May 11 2018

LINKS

Table of n, a(n) for n=1..10.

A. Galad, L. Kornos, A sample of lightcurves from Modra,/a>, Minor Planet Bull. 35 (2) (2008) 78-81

CROSSREFS

Cf. A007468, A199714.

Sequence in context: A173686 A090975 A257579 * A296049 A074962 A064863

Adjacent sequences:  A199712 A199713 A199714 * A199716 A199717 A199718

KEYWORD

nonn,unkn

AUTHOR

N. J. A. Sloane, Nov 09 2011

STATUS

approved

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Last modified August 26 05:50 EDT 2019. Contains 326330 sequences. (Running on oeis4.)