68376

Appears in sequences

• Number of ways of writing n as a sum of 7 squares.at n=29A008451
• Even numbers k such that the central binomial coefficient A000984(k, k/2) is divisible by k^2.at n=33A080395
• Define an array by d(m, 0) = 1, d(m, 1) = m; d(m, k) = (m - k + 1) d(m+1, k-1) - (k-1) (m+1) d(m+2, k-2). Sequence gives d(n,3).at n=42A126935
• A000012 * A122890.at n=53A135722
• a(n) = (8*n + 18)*Pochhammer(n, 6) / 6!.at n=7A293614
• a(n) = a(n-2) + 2*a(n-4) - a(n-10), with a[0..9] = [1, 1, 1, 1, 1, 2, 3, 5, 6, 9].at n=36A366143
• Numbers k such that the sum of the proper divisors of k that have the same binary weight as k is larger than k, and no subset of these divisors sums to k.at n=38A381071