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

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

Offset

1,2

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.

Links

Table of n, a(n) for n=1..10.

Crossrefs

Sequence in context: A123668 A336427 A197200 * A140616 A087456 A081220

Adjacent sequences: A090433 A090434 A090435 * A090437 A090438 A090439

Keyword

nonn,easy

Author

Wolfdieter Lang, Dec 01 2003

Status

approved