61881

Appears in sequences

• Number of 3 X 3 integer matrices with elements in the range [ -n,n ] which represent a rotation of order 2.at n=19A053171
• Positions of A080313 in A014486.at n=35A080312
• Partial sums of A003418 starting summing from A003418(1), with a(0) = 0.at n=12A236856