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A060566 a(n)=n^2-79*n+1601. +0
2
1523, 1447, 1373, 1301, 1231, 1163, 1097, 1033, 971, 911, 853, 797, 743, 691, 641, 593, 547, 503, 461, 421, 383, 347, 313, 281, 251, 223, 197, 173, 151, 131, 113, 97, 83, 71, 61, 53, 47, 43, 41, 41, 43, 47, 53, 61, 71, 83, 97, 113, 131, 151, 173, 197, 223, 251 (list; graph; listen)
OFFSET

1,1

COMMENT

The formula produces primes for all values of n from 0 through 79.

First 80 prime entries are palindromically distributed because a(n) = P(x) = x^2 + x + 41, with x=n-40, and we observe that P(x) generates primes (A005846) for x = 0 through 39, along with the fact that P(-x)=P(x-1). - Lekraj Beedassy (boodhimam(AT)yahoo.com), Apr 24 2006

REFERENCES

C. Stanley Ogilvy and John T. Anderson, Excursions in Number Theory, Dover Publications, NY, 1966, p. 37, 147.

CROSSREFS

Sequence in context: A031627 A087867 A073104 this_sequence A031537 A031717 A030061

Adjacent sequences: A060563 A060564 A060565 this_sequence A060567 A060568 A060569

KEYWORD

easy,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Apr 11 2001

EXTENSIONS

Edited by njas at the suggestion of Andrew Plewe, May 16 2007

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.


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