41509

Appears in sequences

• Numerators of continued fraction convergents to sqrt(805).at n=7A042552
• Number of (n+1)X(n+1) -4..4 symmetric matrices with every 2X2 subblock having sum zero and one, two or three distinct values.at n=8A211494
• Numbers k that divide A003714(k).at n=12A276488
• The number of lit cells in weakly decreasing partitions of n when light shines from the north west and only the first column is lit. Here partitions are represented from left to right by columns of cells.at n=30A366175