A281349 - OEIS

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A281349

Row sums of A281350.

1

1, 3, 14, 61, 252, 1019, 4127, 17242, 74007, 325615, 1458604

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..11.

R. J. Mathar, Topologically Distinct Sets of Non-intersecting Circles in the Plane, arXiv:1603.00077 [math.CO], 2016.

CROSSREFS

Sequence in context: A171499 A006502 A024037 * A307268 A237608 A100295

Adjacent sequences: A281346 A281347 A281348 * A281350 A281351 A281352

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jan 20 2017

STATUS

approved