33021

Appears in sequences

• Number of scalene triangles, distinct up to congruence, on a centered hexagonal grid of size n.at n=13A241236
• Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5 or 7.at n=40A258634
• Indices of Ulam prime triples, where u(k), u(k+1) and u(k+2) are all primes, and u(k) = A002858(k) are the Ulam numbers.at n=14A307330
• Numbers that are divisible by the product of their digits in primorial base representation.at n=25A341433
• Lexicographically earliest sequence of nonnegative integers such that two distinct terms differ by at least 4 decimal digits.at n=29A346000
• Numbers k that divide the k-th central Delannoy number.at n=42A372901