A pentagonal number is defined as n(3n1)/2 for n = 1, 2, . . ., and so
Question:
A pentagonal number is defined as n(3n–1)/2 for n = 1, 2, . . ., and so on. Therefore, the first few numbers are 1, 5, 12, 22, . . . .
Write a method with the following header that returns a pentagonal number:
public static int getPentagonalNumber(int n)
Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line.
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Step by Step Answer:
Program plan Step 1 Create a class called PentagonDemo Step 2 Declare and initialize tw...View the full answer
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Related Book For 
Introduction to Java Programming, Comprehensive Version
ISBN: 978-0133761313
10th Edition
Authors: Y. Daniel Liang
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