Voozh

A223752

Number of 1X(n+1) 0..3 arrays with every row least squares fitting to a positive slope straight line and every column least squares fitting to a zero or positive slope straight line, with a single point array taken as having zero slope.

6, 24, 117, 456, 1962, 7660, 31897, 125240, 514300, 2027832, 8266707, 32688296, 132665572, 525661108, 2127110678, 8440975288, 34086061208, 135418512296, 546011521445, 2171164829984, 8744100796746, 34795052216800, 140006637363629