A184127 Number of n X 7 0..3 arrays with rows and columns in nondecreasing order.

120, 142376, 581588614, 2895890669208, 12323643023399737, 42630936592613426327, 122233352821430587249163, 298254428253388683225868035, 633084498761485396427699934865

Offset: 1

Author

R. H. Hardin, Jan 09 2011

Keywords

• nonn

Comments

Column 7 of A184129.

Examples

			Some solutions for 3 X 7
..0..0..0..0..0..0..0....0..0..0..0..0..0..1....0..0..0..0..2..2..2
..0..0..0..0..1..2..3....0..0..0..1..2..3..3....0..0..0..2..0..1..3
..0..0..0..0..3..2..3....0..0..2..0..2..2..3....0..0..2..0..1..3..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..19

Crossrefs

Cf. A184129.