A090436 Denominators used to compute the column sequences of triangle A090217.

1, 5, 100, 27500, 687500, 7075062500, 3594287401375000, 81456034414253835114625000, 35683959264371194185124824344091625000, 140789696830026154896057937831705061406034875000

Offset: 1

Author

Wolfdieter Lang, Dec 01 2003

Keywords

• nonn
• easy

Comments

a(n) = lcm(seq(denominator(a(n,m)),m=1..n)) with the a(n,m) formula given in A090435(n,m) but without the D(n) factor in front and lcm denotes the least common multiple of a set of numbers.