A024221 - OEIS

A024221

[ (4th elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+3 positive integers congruent to 1 mod 3}.

12, 163, 891, 3256, 9340, 22757, 49254, 97430, 179537, 312394, 518402, 826655, 1274155, 1907129, 2782449, 3969144, 5550027, 7623415, 10304946, 13729509, 18053268, 23455784, 30142248, 38345805, 48329989, 60391250, 74861587, 92111285, 112551745

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..29.

FORMULA

a(n) = floor(A024214(n) / A000326(n+3)). - Sean A. Irvine, Jun 25 2019

CROSSREFS

Sequence in context: A296194 A307071 A138455 * A093152 A282010 A143583

Adjacent sequences: A024218 A024219 A024220 * A024222 A024223 A024224

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved