Number Sequence Calculator
Generate Fibonacci, Lucas, triangular, square, pentagonal, and prime sequences. Find Nth term or check membership.
Guia Completa de Usuario
Select sequence type, then: Generate (list terms), Find Nth Term (a specific position), or Check Membership (is your number in the sequence?).
La Formula Matematica
Fibonacci: F(n) = F(n-1) + F(n-2)
Fibonacci: F(n)=F(n-1)+F(n-2), 0,1,1,2,3,5,... Triangular: T(n)=n(n+1)/2, 1,3,6,10,... Square: n², 1,4,9,16,... Pentagonal: n(3n-1)/2.
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