55843

Properties

Appears in sequences

• Row sums of the triangle described in A082200.at n=35A082203
• Triangle T(n,k), 0<=k<=n, read by rows; given by [0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, ...] DELTA [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, ...] where DELTA is the operator defined in A084938.at n=50A094456
• Primes of the form k^2 + k + 55661, with k >= 0.at n=10A116206
• Main diagonal of Ludic array A255127 (and A255129): a(n) = A255127(n,n).at n=36A255410
• Prime numbersat n=5669