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A210027
Number of 2 X 2 matrices having all elements in {1,2,...,n} and determinant 5.
3
0, 0, 0, 3, 9, 23, 27, 47, 59, 79, 111, 147, 159, 203, 223, 291, 319, 379, 399, 467, 535, 579, 615, 699, 727, 883, 927, 995, 1039, 1147, 1215, 1331, 1391, 1467, 1527, 1739, 1783, 1923, 1991, 2083, 2223, 2379, 2423, 2587, 2663, 2875, 2959, 3139
OFFSET
0,4
COMMENTS
See A210000 for a guide to related sequences.
MATHEMATICA
(See the Mathematica section at A209978.)
CROSSREFS
Cf. A210000.
Sequence in context: A272559 A270991 A029512 * A018555 A382455 A147271
KEYWORD
nonn
AUTHOR
Clark Kimberling, Mar 16 2012
STATUS
approved