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A000047 Number of integers <= 2^n of form x^2 - 2y^2.
(Formerly M0701 N0259)
+0
2
1, 2, 3, 5, 8, 15, 26, 48, 87, 161, 299, 563, 1066, 2030, 3885, 7464, 14384, 27779, 53782, 104359, 202838, 394860, 769777, 1502603, 2936519, 5744932, 11249805, 22048769, 43248623, 84894767, 166758141, 327770275, 644627310, 1268491353, 2497412741 (list; graph; listen)
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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