89228

Appears in sequences

• Deficient numbers whose aliquot sequence is deficient, abundant, deficient, ..., etc.at n=24A234970
• Number of (n+1) X (4+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).at n=13A235285
• Number of (n+2)X(4+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000101.at n=25A259768
• Number of triangles on a 4 X n grid.at n=20A296367