Triangle T(n,k), 0 <= k <= n, read by rows, given by [1,0,-1,0,0,0,0,0,0,...] DELTA [3,-2,-1,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.
A152842
Triangle T(n,k), 0 <= k <= n, read by rows, given by [1,0,-1,0,0,0,0,0,0,...] DELTA [3,-2,-1,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =4a(5) =3a(6) =1a(7) =7a(8) =15a(9) =9a(10) =1a(11) =8a(12) =22a(13) =24a(14) =9a(15) =1a(16) =11a(17) =46a(18) =90a(19) =81a(20) =27a(21) =1a(22) =12a(23) =57a(24) =136a(25) =171a(26) =108a(27) =27a(28) =1a(29) =15
External references
- oeis: A152842