A297194 Left-hand half of triangle A297193.

1, 1, 4, 1, 8, 17, 1, 12, 49, 80, 1, 16, 97, 280, 401, 1, 20, 161, 672, 1569, 2084, 1, 24, 241, 1320, 4321, 8752, 11073, 1, 28, 337, 2288, 9681, 26684, 48833, 59712, 1, 32, 449, 3640, 18929, 66376, 160929, 272976, 325441, 1, 36, 577, 5440, 33601, 143444, 435681

Offset: 0

Author

N. J. A. Sloane, Jan 10 2018

Keywords

• nonn
• easy
• tabl

Examples

			Triangle begins:
1,
1,4,
1,8,17,
1,12,49,80,
1,16,97,280,401,
1,20,161,672,1569,2084,
...
		

Crossrefs

Cf. A008288, A297193.

Programs

Maple

seq(seq(A297193(n,k),k=0..n),n=0..10) ; # R. J. Mathar, Mar 04 2018