Determinant of the 2 X 2 matrices where the first column is consecutive triangular numbers and the second column is the corresponding consecutive Fibonacci numbers.

A113772

Determinant of the 2 X 2 matrices where the first column is consecutive triangular numbers and the second column is the corresponding consecutive Fibonacci numbers.

Terms

    a(0) =-2a(1) =0a(2) =-2a(3) =5a(4) =15a(5) =49a(6) =120a(7) =279a(8) =605a(9) =1265a(10) =2562a(11) =5070a(12) =9842a(13) =18810a(14) =35480a(15) =66181a(16) =122265a(17) =223991a(18) =407340a(19) =735945a(20) =1321903a(21) =2361985a(22) =4200468a(23) =7437900a(24) =13118950a(25) =23056164a(26) =40386850a(27) =70529189a(28) =122820915a(29) =213323245

External references