42321

Appears in sequences

• a(n) = 80*n^2 + 1.at n=23A158776
• Numerator of Hermite(n, 3/16).at n=4A159522
• Semiprimes of the form 5*n^2 + 1.at n=30A212707
• Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=7A299361
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=47A299366
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=52A299366
• Number of subsets of {1..n} containing all of their integer quotients.at n=21A326023