99456

Appears in sequences

• Theta series of 15-dimensional unimodular lattice A15+.at n=5A004536
• Number of ways of writing n as a sum of 7 squares.at n=31A008451
• Triangle T(n,k) = d(n-k,n), 0 <= k <= n, where d(l,m) = Sum_{k=l..m} 2^k * binomial(2*m-2*k, m-k) * binomial(m+k, m) * binomial(k, l).at n=17A067001
• Coefficients of a polynomial representation of the integral of 1/(x^4 + 2*a*x^2 + 1)^(n+1) from x = 0 to infinity.at n=18A126936
• Numbers with prime factorization pqrs^7.at n=30A190473
• Numbers k such that k = Product (p_j^e_j) = Product (p_j*(e_j + 1)).at n=34A304410
• T(n,k) = Sum_{j=1..n} 2^j*binomial(2*n-2*j, n-j)*binomial(n+j, n)*binomial(j, k), triangle read by rows (n >= 0 and 0 <= k <= n).at n=18A335183
• Numbers whose prime indices and prime signature have the same mean.at n=42A359903
• Number of pairs of antipodal vertices in the level n>1 Sierpiński triangle graph.at n=8A370933