A154081 Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 10.

2772, 12494, 23493, 40947, 41096, 46487, 43627, 32038, 17016, 8815, 3707, 2835, 1541, 2032, 1008, 876, 876, 832, 788, 744, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696, 696

Offset

5,1

Comments

Value 696 starts at n=25 and continues through at least n=52.

Links

Table of n, a(n) for n=5..51.

Crossrefs

Sequence in context: A046332 A046380 A249228 * A362876 A099691 A231739

Adjacent sequences: A154078 A154079 A154080 * A154082 A154083 A154084

Keyword

nonn

Author

R. H. Hardin Jan 04 2009

Status

approved