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A327447 a(n) = 4*p(n-1)*p(n+1) - p(n)^2, where p(k) = k-th prime. 2
31, 59, 171, 243, 579, 699, 1203, 1675, 2011, 3331, 3715, 4683, 5859, 6907, 8283, 9451, 12091, 12835, 14523, 17107, 17995, 21235, 24283, 26547, 29763, 32619, 33459, 36483, 42603, 43083, 52435, 54067, 62331, 61755, 70771, 73803, 78307, 84907, 89643, 93211, 103995, 103251, 113259, 114819, 126667, 132987, 141859 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

It follows from Mitrinovic et al., Sect. VII.18(b) that a(n) >0 for all n.

REFERENCES

D. S. Mitrinovic et al., Handbook of Number Theory, Kluwer, 1996.

LINKS

Table of n, a(n) for n=2..48.

CROSSREFS

Cf. A309487, A324795.

Sequence in context: A039350 A043173 A043953 * A139954 A153636 A109840

Adjacent sequences:  A327444 A327445 A327446 * A327448 A327449 A327450

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Sep 14 2019

STATUS

approved

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Last modified January 23 04:16 EST 2020. Contains 331168 sequences. (Running on oeis4.)