Question 7 - Relations among Number Sequences - Chapter 1 Class 6 - Patterns in Mathematics (Ganita Prakash)

Last updated at August 14, 2026 by

What happens when you multiply the triangular numbers by 6 and add 1? - Relations among Number Sequences

part 2 - Question 7 - Relations among Number Sequences - Chapter 1 Class 6 - Patterns in Mathematics (Ganita Prakash) - Class 6 (Ganita Prakash & Old NCERT)

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Question 7 What happens when you multiply the triangular numbers by 6 and add 1? Which sequence do you get? Can you explain it with a picture?The Triangular Numbers sequence: 1, 3, 6, 10, 15, 21, … We have to multiply these numbers by 6, and then add 1 Thus, we get the sequence: 7, 19, 37, 61, 91, 127, … This sequence is called the Centered Hexagonal Number Centered Hexagonal Number In this sequence, Center number is denoted by dots And it is surrounded by hexagonal numbers

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