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A249835 Coefficients related to admissible r-tuples (see Link). 0
0, 3, 15, 41, 84, 153, 247, 367, 523, 721, 961, 1251, 1588, 1983, 2437, 2963, 3548, 4219, 4954, 5761 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..20.

Cristian Cobeli, Alexandru Zaharescu, On the geometry behind a recurrent relation, arXiv:1411.1321 [math.NT], 2014 (see Introduction).

CROSSREFS

Sequence in context: A298884 A298655 A299608 * A295938 A096742 A012256

Adjacent sequences:  A249832 A249833 A249834 * A249836 A249837 A249838

KEYWORD

nonn,more

AUTHOR

Michel Marcus, Nov 07 2014

STATUS

approved

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Last modified January 24 19:34 EST 2022. Contains 350565 sequences. (Running on oeis4.)