23483

Appears in sequences

• Number of n-bead necklaces labeled with numbers -3..3 not allowing reversal, with sum zero and first differences in -3..3.at n=8A208988
• T(n,k) is the number of n-bead necklaces labeled with numbers -k..k not allowing reversal, with sum zero and first differences in -k..k.at n=63A208993
• Triangular array read by rows. T(n,k) is the number of functions on n unlabeled nodes that have exactly k unique components (n >= 1, k >= 1).at n=45A217859
• a(n) = Sum_{k=0..n} (-1)^(k+1) * k * A000041(n-k).at n=45A270143