A051668 - OEIS

A051668

Rows of triangle formed using Pascal's rule except begin and end n-th row with (n+1)^2.

1, 4, 4, 9, 8, 9, 16, 17, 17, 16, 25, 33, 34, 33, 25, 36, 58, 67, 67, 58, 36, 49, 94, 125, 134, 125, 94, 49, 64, 143, 219, 259, 259, 219, 143, 64, 81, 207, 362, 478, 518, 478, 362, 207, 81, 100, 288, 569, 840, 996, 996, 840, 569, 288, 100, 121, 388, 857, 1409

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..58.

EXAMPLE

Triangle begins as:

4, 4;

9, 8, 9;

16, 17, 17, 16;

25, 33, 34, 33, 25;

...