55429

Appears in sequences

• Number of upward triangles in a Star of David matchstick arrangement of size n.at n=22A045950
• Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1000-1100-0111 pattern in any orientation.at n=11A147102
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1000-1000-1100-0111 pattern in any orientation.at n=24A147104
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1000-1000-1100-0111 pattern in any orientation.at n=25A147104
• Number of (n+1) X (3+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.at n=8A251083
• Numbers x whose 10's complements y have the same sum of divisors of x, with x <> y.at n=16A300796
• Positive numbers k such that -k, -(k + 1), -(k + 2), and -(k + 3) are 4 consecutive negative negabinary-Niven numbers (A331728).at n=22A331825