A159744 If an array is made of columns of -nacci sequences, fibo-, tribo- etc. all starting w. 1,1,2 etc, the NW to SE diagonals can be extended by computation. The above is diagonal 8. See A159741 for details.

34, 149, 401, 912, 1936, 3984, 8080

Offset: 1

Author

Al Hakanson (hawkuu(AT)gmail.com), Apr 20 2009

Keywords

• nonn
• more

Formula

Interpolate a(n)=-2*n^2+9*n+115 offset 0 & b(n)=2*n^2-7*n+137 offset 0. Add 34 as a leader. Binomially transform. [From Al Hakanson (hawkuu(AT)gmail.com), Jun 08 2009]