23368

Appears in sequences

• Numbers k such that 193*2^k+1 is prime.at n=26A032473
• a(n) = n*(n+1)*(11*n+1)/6.at n=23A132112
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 0), (-1, 1, 1), (1, 0, 0), (1, 1, 0)}.at n=8A150314
• Numbers of the form 7^j + 9^k, for j and k >= 0.at n=29A226831
• Triangular array: row n gives the coefficients of the polynomial p(n,x) defined in Comments.at n=51A249248
• Number of n X n 0..1 arrays with every element unequal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.at n=6A305090
• Number of nX7 0..1 arrays with every element unequal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.at n=6A305096
• Number of regular graphs with loops on n labeled vertices.at n=6A322635
• Number of n-vertex labeled simple graphs containing a Hamiltonian path.at n=6A326206
• Triangle read by rows: T(m,n) (m >= n >= 1) = number of regions formed by drawing the line segments connecting any two of the (m+1) X (n+1) lattice points in an m X n grid of squares and extending them to the boundary of the grid.at n=24A333282