Triangle read by rows: coefficients of characteristic polynomials of lower triangular matrix of Robbins triangle numbers.

A102610

Triangle read by rows: coefficients of characteristic polynomials of lower triangular matrix of Robbins triangle numbers.

Terms

    a(0) =0a(1) =1a(2) =-1a(3) =1a(4) =-2a(5) =1a(6) =1a(7) =-4a(8) =5a(9) =-2a(10) =1a(11) =-11a(12) =33a(13) =-37a(14) =14a(15) =1a(16) =-53a(17) =495a(18) =-1423a(19) =1568a(20) =-588a(21) =1a(22) =-482a(23) =23232a(24) =-213778a(25) =612035a(26) =-673260a(27) =252252a(28) =1a(29) =-7918

External references