A201832 Number of nX4 0..3 arrays with every diagonal, row and column running average nondecreasing rightwards and downwards and diagonally.
51, 823, 11180, 135236, 1513357, 15948080, 160648302, 1559706843, 14692678301, 134927163853, 1212424285166, 10691263233469, 92739873027153, 792943021386085, 6694286144508402, 55884695484131751, 461907052202339158
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..0..1....0..1..1..1....0..0..1..1....0..0..0..2....0..0..0..0 ..3..3..3..3....0..1..3..3....0..1..3..2....0..2..3..3....0..1..2..3 ..2..3..3..3....1..1..2..2....0..1..2..2....1..3..2..3....1..1..1..3
Links
- R. H. Hardin, Table of n, a(n) for n = 1..25
Comments