A184237 Number of strings of numbers x(i=1..n) in 0..6 with sum i^2*x(i)^2 equal to n^2*36

1, 1, 2, 2, 11, 43, 176, 962, 5920, 32442, 200063, 1001781, 5741231, 27193559, 138909230, 637035484, 2950387477, 13201021106, 57236617635, 249376811696, 1038248236269, 4406834227368, 17966062720649, 74439378783079

Offset

1,3

Comments

Column 6 of A184240

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

All solutions for n=5
..0....4....4....6....4....6....0....0....0....6....0
..5....2....6....4....4....6....0....0....4....4....5
..0....6....6....0....4....4....0....6....2....4....4
..5....3....1....5....6....6....0....6....5....4....4
..4....4....4....4....2....0....6....0....4....4....4

Crossrefs

Sequence in context: A089544 A208967 A192824 * A069648 A275869 A175976

Adjacent sequences: A184234 A184235 A184236 * A184238 A184239 A184240

Keyword

nonn

Author

R. H. Hardin Jan 10 2011

Status

approved