75024

Appears in sequences

• a(n) = Fibonacci(n) - 1.at n=24A000071
• a(n) = Fibonacci(n) + (-1)^n.at n=25A008346
• Expansion of e.g.f.: exp(arctanh(x)*log(x+1))=1+2/2!*x^2-3/3!*x^3+28/4!*x^4-110/5!*x^5...at n=8A012697
• Pisot sequence T(4,7).at n=20A020732
• Theta series of D*_12 lattice.at n=5A022065
• a(n) = Fibonacci(2*n + 1) - 1.at n=12A027941
• Expansion of (theta_3(z^4)^3 + theta_2(z^4)^3)^4.at n=20A028697
• a(n) = Fibonacci(n+2) - (1-(-1)^n)/2.at n=23A052952
• Third column of triangle A054450 (partial row sums of unsigned Chebyshev triangle A049310).at n=22A054451
• Numbers that are Fibonacci numbers plus or minus 1.at n=44A061489
• a(n) = Fibonacci(n+1) - (1 + (-1)^n)/2.at n=24A074331
• n for which there is a chain (or permutation) of the numbers from 1 to n for which each adjacent pair sums to a Fibonacci number.at n=44A079734
• a(n) = Fibonacci(4n+1) - 1, or Fibonacci(2n)*Lucas(2n+1).at n=6A081007
• a(n) = F(n)*L(n+1) where F=Fibonacci and L=Lucas numbers.at n=12A081714
• Expansion of (3+x-x^2)/((1+x+x^2)(1-x-x^2)).at n=23A100888
• a(n) = Fibonacci(n) - (Fibonacci(n) mod 2).at n=25A104221
• a(n) = a(n-1) + a(n-3) + a(n-4), n >= 4, with initial terms 0,1,3,3.at n=24A111573
• Alternating sum of the first n Fibonacci numbers.at n=26A119282
• a(n) = Fibonacci((prime(n)+3)/2) - 1.at n=13A121569
• Number of possible palindromic rows (or columns) in an n X n crossword puzzle.at n=46A131524