Math 2.0

Concept

Riordan array

Summary

A Riordan array is an infinite lower triangular matrix, DD, constructed from two formal power series, d(t)d(t) of order 0 and h(t)h(t) of order 1, such that dn,k=[tn]d(t)h(t)kd_{n,k} = [t^n]d(t) h(t)^k.

Further reading

  1. Wikipedia, page 38457493, revision 1349519158, Riordan array. adopted
About this page
Tag3Q0QD7C059
URIm2://3Q0QD7C059
Aliasesriordan-arrays, riordan-group
Kindconcept
WritingW1 stated
Same as
Changed4 November 2026

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