175473

Appears in sequences

• a(n) = (2*n - 1)*(7*n^2 - 7*n + 3)/3.at n=33A063494
• Numbers k such that k and k + 1 has the same value of A319445, the equivalent of the Euler totient function in the ring of Eisenstein integers.at n=12A332530
• Number of n X 4 0..2 matrices with row sums 4 and column sums n up to permutations of rows.at n=12A377068