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

Offset

0,2

Comments

Row sums give 11*2^n - 4*n - 10 (A051669).

Links

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

Example

1; 4,4; 9,8,9; 16,17,17,16; 25,33,34,33,25; ...

Crossrefs

Sequence in context: A351582 A049723 A010661 * A005441 A362294 A198497

Adjacent sequences: A051665 A051666 A051667 * A051669 A051670 A051671

Keyword

easy,nonn,tabl

Author

Asher Auel

Extensions

More terms from James A. Sellers

Status

approved