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A251559 a(n) = 2 more than the largest odd number among {A098550(1), A098550(2), ..., A098550(n)} which is neither a prime nor a member of A251542. 4
9, 9, 9, 9, 15, 15, 21, 21, 21, 21, 21, 21, 39, 39, 39, 39, 39, 39, 39, 39, 45, 45, 45, 45, 45, 49, 49, 55, 55, 55, 55, 55, 55, 57, 57, 69, 69, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 99, 99, 105, 105, 105, 105, 121 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..70.

David L. Applegate, Hans Havermann, Bob Selcoe, Vladimir Shevelev, N. J. A. Sloane, and Reinhard Zumkeller, The Yellowstone Permutation, arXiv preprint arXiv:1501.01669, 2015.

CROSSREFS

Cf. A098550, A251546, A251557, A251558.

Sequence in context: A087416 A216852 A251558 * A068395 A245429 A242893

Adjacent sequences:  A251556 A251557 A251558 * A251560 A251561 A251562

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 23 2014

STATUS

approved

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Last modified July 25 10:20 EDT 2017. Contains 289792 sequences.