183000

Appears in sequences

• Totient of the Woodall numbers (A003261), n*2^n -1.at n=13A056821
• 1/10 of the number of permutations of 4 indistinguishable copies of 1..n with exactly 2 local maxima.at n=4A152504
• Number of nX4 -2..2 arrays of 2X2 subblock diagonal sums minus antidiagonal sums for some (n+1)X5 binary array with rows and columns of the latter in lexicographically nondecreasing order.at n=4A227058
• Number of nX5 -2..2 arrays of 2X2 subblock diagonal sums minus antidiagonal sums for some (n+1)X6 binary array with rows and columns of the latter in lexicographically nondecreasing order.at n=3A227059
• T(n,k)=Number of nXk -2..2 arrays of 2X2 subblock diagonal sums minus antidiagonal sums for some (n+1)X(k+1) binary array with rows and columns of the latter in lexicographically nondecreasing order.at n=31A227060
• T(n,k)=Number of nXk -2..2 arrays of 2X2 subblock diagonal sums minus antidiagonal sums for some (n+1)X(k+1) binary array with rows and columns of the latter in lexicographically nondecreasing order.at n=32A227060
• T(n,k)=Number of nXk 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.at n=37A278014
• Number of 2 X n 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.at n=7A278015