Matrix square of triangle A107876; equals matrix product of triangles: A107876^2 = A107862^-1*A107870 = A107867^-1*A107873.
A107880
Matrix square of triangle A107876; equals matrix product of triangles: A107876^2 = A107862^-1*A107870 = A107867^-1*A107873.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =3a(4) =2a(5) =1a(6) =7a(7) =5a(8) =2a(9) =1a(10) =26a(11) =19a(12) =7a(13) =2a(14) =1a(15) =141a(16) =104a(17) =37a(18) =9a(19) =2a(20) =1a(21) =1034a(22) =766a(23) =268a(24) =61a(25) =11a(26) =2a(27) =1a(28) =9693a(29) =7197
External references
- oeis: A107880