195073

Appears in sequences

• Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1001-1111-0110 pattern in any orientation.at n=12A147420
• A symmetrical triangle read by rows: T(n, k) = 2^n*(q^k - 1)*(q^(n - k) - 1) + 1, where q = 2.at n=47A176793
• A symmetrical triangle read by rows: T(n, k) = 2^n*(q^k - 1)*(q^(n - k) - 1) + 1, where q = 2.at n=52A176793