33365

Appears in sequences

• a(n) = T(n,2n-4), T given by A027023.at n=10A027028
• Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 15.at n=29A051980
• Numbers k such that k and k^2 use only the digits 1, 2, 3, 5 and 6.at n=51A136974
• a(n) = prime(prime(n*n) - n*n) - n*n where prime(n) is the n-th prime.at n=23A141127
• Number of set partitions of [n] such that 5 is the largest element of the last block.at n=7A271744
• Number of set partitions of [n+7] such that n is the largest element of the last block.at n=4A271758
• Number of tilings of an equilateral triangle of side length n with unit triangles (of side length 1) and exactly three unit "lozenges" or "diamonds" (also of side length 1).at n=6A326368