NCERT Figure it Out 4 - Virahanka pyramid - Algebra Play
Question: Put the first three Virahanka-Fibonacci numbers 1, 2, 3 on the bottom of a 3-row pyramid. Fill the rest. Are all entries Virahanka-Fibonacci?
Answer: Pyramid numbers 1, 2, 3, 5, 8; top 8; all are Virahanka-Fibonacci.
Full step-by-step NCERT solution with diagrams on Something by Zero.