Number of n X 5 nonnegative integer arrays with upper left 0 and lower right n+5-4 and value increasing by 0 or 1 with every step right or down.

A252873

Number of n X 5 nonnegative integer arrays with upper left 0 and lower right n+5-4 and value increasing by 0 or 1 with every step right or down.

Terms

    a(0) =6a(1) =61a(2) =413a(3) =1953a(4) =7313a(5) =23203a(6) =64920a(7) =164399a(8) =383735a(9) =836797a(10) =1722394a(11) =3373453a(12) =6327844a(13) =11427851a(14) =19956855a(15) =33823579a(16) =55806260a(17) =89871373a(18) =141584051a(19) =218630137a(20) =331472883a(21) =494170691a(22) =725385986a(23) =1049619335a(24) =1498707293

External references