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A102267
Smallest prime for which 2^n exactly divides the class number h(8p) and X^2 - 2pY^2 = -2 is solvable.
0
3, 73, 257, 1217, 23041, 27953, 243137, 1408961
OFFSET
1,1
CROSSREFS
Sequence in context: A259848 A041279 A054699 * A201038 A142078 A054689
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Feb 19 2005
STATUS
approved