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A117510 Index (sum) of first Orloj clock sequence containing n. 1
1, 3, 7, 11, 19, 21, 35, 63, 45, 95, 99, 93, 119, 105, 165, 429, 273, 285, 581, 385, 345, 495, 749, 651, 665, 1001, 693, 1155, 1197, 1155, 1287, 1463, 693, 1935, 1659, 2331, 2145, 1995, 2915, 2415, 3399, 2115, 4785, 3157, 3519, 5225, 5481, 2871, 5115, 6045 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) >= n(n+1)/2. This is equality for n = 1,2,6,9,14. Are there any others?

LINKS

Table of n, a(n) for n=1..50.

CROSSREFS

Cf. A118382.

Sequence in context: A049645 A167181 A049835 * A160227 A134442 A094179

Adjacent sequences:  A117507 A117508 A117509 * A117511 A117512 A117513

KEYWORD

nonn

AUTHOR

Franklin T. Adams-Watters, Apr 26 2006

STATUS

approved

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Last modified September 28 00:46 EDT 2021. Contains 347698 sequences. (Running on oeis4.)