A130852 Related to symmetry classification of 3-dimensional integrable scalar discrete equations.

1, 3, 6, 1, 13, 22, 94, 77, 349, 402

Offset

1,2

Links

Table of n, a(n) for n=1..10.

S. P. Tsarev and T. Wolf, Classification of 3-dimensional integrable scalar discrete equations, Table 1, p. 7.

Example

S. P. Tsarev and T. Wolf's Table 1, p. 7 (first columns only, excludes column of SL2-invariant subcases):
n, types of symmetry, number of parameters and terms
-----------------------------
2 1) (+-) 1 param; 4 terms
2 2) (-+) 3 param; 10 terms
2 3) (++) 6 param; 16 terms
-----------------------------
3 1) (---) 1 param; 24 terms
3 2) (-++) 13 param; 186 terms
3 3) (+++) 22 param; 256 terms
-----------------------------
4 1) (----) 94 param; 29208 terms
4 2) (+---) 77 param; 26112 terms
4 3) (-+++) 349 param; 60666 terms
4 4) (++++) 402 param; 2^16 terms
-----------------------------
Symmetry classification of the face formulas w.r.t. the complete symmetry group of the cube.
-----------------------------

Crossrefs

Sequence in context: A192100 A123534 A100960 * A228335 A138799 A321480

Adjacent sequences: A130849 A130850 A130851 * A130853 A130854 A130855

Keyword

nonn,tabf

Author

Jonathan Vos Post, Jul 21 2007

Status

approved