40194

Appears in sequences

• Sum of numbers under a triangle on a spiral staircase of width 10.at n=26A111080
• Denominator of sum of first n ratios of Fibonacci to Lucas numbers.at n=7A125889
• Number of lower triangles of an n X n 0..7 array with no element differing from any of its horizontal or vertical neighbors by more than one.at n=3A194930
• Number of lower triangles of a 4 X 4 0..n array with no element differing from any of its horizontal or vertical neighbors by more than one.at n=6A194933
• a(n) = L(n) * L(n+1) * L(n+2) * L(n+3), the product of four consecutive Lucas numbers, A000032.at n=4A228874
• Sum T(n,k) of the entries in the k-th cycles of all permutations of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=22A285439
• Sum of entries in the second cycles of all permutations of [n].at n=5A285489
• Those primitive elements of A337386 that have exactly one primitive nondeficient divisor (A006039).at n=16A341604
• Coefficient of x^n in the expansion of 1 / ( (1-x) * (1-x+x^3) )^(2*n).at n=5A372465