121016

Appears in sequences

• a(n) = round(n*phi^20), where phi is the golden ratio, A001622.at n=8A004955
• a(n) = ceiling(n*phi^20), where phi is the golden ratio, A001622.at n=8A004975
• T(n,n-2), array T as in A038738.at n=10A038739
• T(2n+5,n), array T as in A038792.at n=10A038798
• Central numbers of the triangle T of all positive differences of distinct Fibonacci numbers.at n=11A094586
• a(n) = Sum_{k=0..floor(n/2)} binomial(n-k+4, k).at n=21A099572
• a(n) = Sum_{k=floor((n+1)/2)..n} Fibonacci(k+1).at n=23A129361
• Number of (n+1) X 2 binary arrays with every 2 X 2 subblock determinant equal to some horizontal or vertical neighbor 2 X 2 subblock determinant.at n=9A185479
• Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 4 6 or 7.at n=1A252639
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 4 6 or 7.at n=29A252640
• Number of (2+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 4 6 or 7.at n=6A252642
• a(n) = 8*Lucas(n).at n=20A258160
• Expansion of Product_{k>=2} (1 + x^Fibonacci(k))^Fibonacci(k).at n=43A291650