How to resolve the algorithm Riordan numbers step by step in the 11l programming language

Published on 12 May 2024 09:40 PM
#11l

How to resolve the algorithm Riordan numbers step by step in the 11l programming language

Table of Contents

Problem Statement

Riordan numbers show up in several places in set theory. They are closely related to Motzkin numbers, and may be used to derive them. Riordan numbers comprise the sequence a where: There are other generating functions, and you are free to use one most convenient for your language.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Riordan numbers step by step in the 11l programming language

Source code in the 11l programming language

F riordan(nn)
   V a = [BigInt(1), 0, 1]
   L(n) 3 .< nn
      a.append((n - 1) * (2 * a[n - 1] + 3 * a[n - 2]) I/ (n + 1))
   R a

V rios = riordan(10'000)

L(i) 32
   print(f:‘{commatize(rios[i]):18}’, end' I (i + 1) % 4 == 0 {"\n"} E ‘’)

print(‘The 1,000th Riordan has ’String(rios[999]).len‘ digits.’)
print(‘The 10,000th Rirdan has ’String(rios[9999]).len‘ digits.’)

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