135548

Appears in sequences

• Number of (n+1) X 3 0..2 matrices with each 2 X 2 subblock idempotent.at n=18A224670
• Let p = n-th prime == 3 mod 8; a(n) = (sum of quadratic residues mod p that are < p/2) + (sum of all quadratic residues mod p).at n=32A282727