4235364

Appears in sequences

• a(n) = 7*a(n-1) + (-1)^n * binomial(2,2-n) with a(-1)=0.at n=8A055270
• a(n) = n^2*7^n.at n=6A128786
• a(n) = binomial(n+5, 5)*7^n.at n=5A140404
• Number of n X 7 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=13A208068
• Product of the nonzero digits (in base 10) of n^5.at n=5A218311
• Triangle read by rows: coefficients T(n,k) of a binomial decomposition of n as Sum(k=0..n)T(n,k)*binomial(n,k).at n=52A244132
• Magic sums of 3 X 3 semimagic squares of squares whose rows, columns, and at least one of the two main diagonals sum to the same number.at n=18A271021