1584781276

Appears in sequences

• Expansion of 1/( (1-x)*(1-34*x+x^2) ).at n=6A029546
• Triangle T(n, k, m) = t(n, m)/(t(k, m)*t(n-k, m)), where t(n, k) = Product_{j=1..n} p(j, k+1), p(n, x) = Sum_{j=0..n} (-1)^j*A053122(n, j)*x^j, and m = 7, read by rows.at n=38A156601
• Triangle T(n, k, m) = t(n, m)/(t(k, m)*t(n-k, m)), where t(n, k) = Product_{j=1..n} p(j, k+1), p(n, x) = Sum_{j=0..n} (-1)^j*A053122(n, j)*x^j, and m = 7, read by rows.at n=42A156601
• a(n) is a generalized pentagonal number such that 2*a(n) is also a generalized pentagonal number.at n=7A305539
• a(n) = (A388291(n)^2 - 1)/24.at n=24A389355