98910

Appears in sequences

• Averages of twin primes such that the sum of the lower, average and upper parts of the twin primes are averages of other twin primes.at n=30A132929
• a(n) = 81*n^2 - 9*n.at n=35A277991
• Let a(0)=1. Then a(n) = sums of consecutive strings of positive integers of length 3*n, starting with the integer 2.at n=28A289721
• G.f. A(x,y) satisfies: y = f(x,A(x,y)), where f(x,y) = Sum_{n=-oo..oo} x^(n*(n+1)/2) * y^(n*(n-1)/2) is Ramanujan's theta function.at n=36A354649
• G.f. A(x,y) satisfies: -y = f(-x,-A(x,y)), where f(x,y) = Sum_{n=-oo..oo} x^(n*(n+1)/2) * y^(n*(n-1)/2) is Ramanujan's theta function.at n=36A354650
• A diagonal of triangle A354650: a(n) = A354650(n,n+1), for n >= 0.at n=5A354659