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A173257
Pell sequence entry points for primes == 1 (mod 4).
1
3, 7, 8, 5, 19, 10, 27, 31, 36, 44, 48, 51, 55, 28, 17, 75, 79, 87, 91, 96, 9, 23, 116, 40, 64, 15, 139, 140, 49, 78, 159, 28, 175, 22, 187, 39, 199, 200, 102, 211, 216, 224, 114, 231, 255, 65, 271, 279, 71, 16
OFFSET
1,1
LINKS
Neville Robbins, On Pell numbers of the form p*X^2, where p is prime, Fib Quart. 22 (4) (1984) 340, Table 2.
FORMULA
a(n) = A214028(A002144(n)).
MAPLE
A173257 := proc(n)
end proc:
seq(A173257(n), n=1..50) ;
CROSSREFS
Sequence in context: A264826 A335893 A199712 * A103560 A198562 A372863
KEYWORD
nonn,easy
AUTHOR
R. J. Mathar, Jul 07 2012
STATUS
approved