57992

Appears in sequences

• Number of Fibonacci numbers F(k), k <= 10^n, whose initial digit is 7.at n=5A073563
• Number of different partitions of the set {1, 2, ..., n} into an even number of blocks such that each block contains at least 2 elements.at n=10A097763
• Number of -3..3 arrays x(0..n-1) of n elements with nonzero sum and with zero through n-1 differences all nonzero.at n=6A200160
• T(n,k)=Number of -k..k arrays x(0..n-1) of n elements with nonzero sum and with zero through n-1 differences all nonzero.at n=42A200165
• Number of -n..n arrays x(0..6) of 7 elements with nonzero sum and with zero through 6 differences all nonzero.at n=2A200170