We have recurrent sequence of integer number a<sub>1</sub>, a<sub>2</sub>,...
a<sub>1</sub> = 1, a<sub>2</sub> = 2
an = 3a<sub>n-1</sub> + 5a<sub>n-2</sub> for n = 3, 4, 5,...
Is integer number k >= 2, that a<sub>k+1</sub>*a<sub>k+2</sub> mod a<sub>k</sub> = 0 ?
Please for quick help
a<sub>1</sub> = 1, a<sub>2</sub> = 2
an = 3a<sub>n-1</sub> + 5a<sub>n-2</sub> for n = 3, 4, 5,...
Is integer number k >= 2, that a<sub>k+1</sub>*a<sub>k+2</sub> mod a<sub>k</sub> = 0 ?
Please for quick help