-901120

Appears in sequences

• Triangle: r=23;l=7;m(r,l,n)=(r - l)*IdentityMatrix[n] + l*Table[1, {i, 1, n}, {j, 1, n}].at n=16A157981
• Hankel transform of A186039.at n=14A186040
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of max(3i-j, 3j-i), as in A204156.at n=38A204157
• Coefficients in expansion of 432 * (j^(1/2) + (j - 1728)^(1/2)) / (j^(1/2) - (j - 1728)^(1/2)), where j is the j-function.at n=3A299954