A209975 Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant 3.

0, 0, 1, 21, 29, 45, 65, 89, 105, 153, 169, 209, 249, 297, 321, 401, 433, 497, 545, 617, 649, 769, 809, 897, 977, 1057, 1105, 1249, 1297, 1409, 1489, 1609, 1673, 1873, 1937, 2033, 2129, 2273, 2345, 2585, 2649, 2809, 2929, 3097, 3177, 3369, 3457

Offset

0,4

Comments

See A210000 for a guide to related sequences.

Links

Chai Wah Wu, Table of n, a(n) for n = 0..10000

Mathematica

(See the Mathematica section at A210000.)

Crossrefs

Cf. A210000.

Sequence in context: A119107 A004196 A211253 * A077787 A039372 A043195

Adjacent sequences: A209972 A209973 A209974 * A209976 A209977 A209978

Keyword

nonn

Author

Clark Kimberling, Mar 16 2012

Status

approved