Semi-diagonal (one row below central terms) of pendular triangle A118345 and equal to the self-convolution of the central terms (A118346).
A118347
Semi-diagonal (one row below central terms) of pendular triangle A118345 and equal to the self-convolution of the central terms (A118346).
Terms
- a(0) =1a(1) =2a(2) =11a(3) =70a(4) =487a(5) =3592a(6) =27600a(7) =218566a(8) =1771367a(9) =14621410a(10) =122495659a(11) =1038934480a(12) =8903129300a(13) =76970244560a(14) =670507216168
External references
- oeis: A118347