Fundamental positive solution x = x2(n) of the second class of the Pell equation x^2 - 2*y^2 = -
A007522(n), n >= 1 (primes congruent to 7 mod 8).
Discussion
Fri May 23
01:16
OEIS Server: Installed first b-file as b255233.txt.
Discussion
Thu May 22
20:29
M. F. Hasler: I'm not sure this must have keyword "look", but well.