77400

Appears in sequences

• q-factorial numbers for q=-7.at n=4A015020
• This table shows the coefficients of combinatorial formulas needed for generating the sequential sums of p-th powers of triangular numbers. The p-th row (p>=1) contains a(i,p) for i=1 to 2*p-1, where a(i,p) satisfies Sum_{i=1..n} C(i+1,2)^p = 3 * C(n+2,3) * Sum_{i=1..2*p-1} a(i,p) * C(n-1,i-1)/(i+2).at n=28A087127
• Numbers k such that 3k - 1 divides 3^k - 1.at n=32A273614