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A024387
[ (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 4}.
0
20, 319, 1850, 6962, 20344, 50198, 109666, 218483, 404885, 707740, 1178937, 1885998, 2914945, 4373393, 6393898, 9137529, 12797693, 17604194, 23827533, 31783445, 41837686, 54411045, 69984609, 89105263, 112391425, 140539035
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..26.
FORMULA
a(n) = floor(
A024380
(n) /
A000384
(n + 3)). -
Sean A. Irvine
, Jul 06 2019
CROSSREFS
Sequence in context:
A011197
A054621
A111778
*
A307173
A101310
A229775
Adjacent sequences:
A024384
A024385
A024386
*
A024388
A024389
A024390
KEYWORD
nonn
AUTHOR
Clark Kimberling
STATUS
approved
