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A273221 a(n) = p*(p - 1)*(13*p - 5)/6, where p = prime(n). 4
7, 34, 200, 602, 2530, 4264, 9792, 13794, 24794, 50344, 61690, 105672, 144320, 166754, 218362, 314184, 434594, 480680, 638242, 760410, 826944, 1049594, 1218274, 1503744, 1949312, 2201800, 2335834, 2620002, 2770344, 3088064, 4389882, 4819490, 5515072 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..10000

F. V. Weinstein, Notes on Fibonacci partitions, arXiv:math/0307150 [math.NT], 2003-2015, page 22.

MATHEMATICA

Table[p = Prime[n]; p (p - 1) (13 p - 5) / 6, {n, 40}]

PROG

(MAGMA) [p*(p-1)*(13*p-5)/6: p in PrimesUpTo(200)];

(Ruby)

require 'prime'

p Prime.each.take(n).map{|i| i * (i - 1) * (13 * i - 5) / 6} # Seiichi Manyama May 25 2016

CROSSREFS

Cf. A006093, A008837, A179545.

Sequence in context: A177140 A027233 A117650 * A144038 A027842 A232043

Adjacent sequences:  A273218 A273219 A273220 * A273222 A273223 A273224

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, May 18 2016

STATUS

approved

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Last modified October 22 00:52 EDT 2019. Contains 328315 sequences. (Running on oeis4.)