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A054171 Number of positive integers <= 2^n of form 4 x^2 + 7 y^2. 0
0, 0, 1, 2, 4, 7, 12, 23, 41, 77, 142, 270, 504, 958, 1834, 3505, 6752, 13016, 25170, 48775, 94718, 184210, 358805, 699919, 1366853, 2672452, 5230345, 10245791, 20088113, 39415538, 77394348, 152067981, 298975703, 588143637, 1157617442 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,4
LINKS
CROSSREFS
Cf. A020683.
Sequence in context: A099604 A026790 A054165 * A018080 A226160 A018181
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)