Number of nonnegative integer matrices with total sum n, distinct columns with equal sums and any number of nonzero rows in nonincreasing lexicographic order.
A330158
Number of nonnegative integer matrices with total sum n, distinct columns with equal sums and any number of nonzero rows in nonincreasing lexicographic order.
Terms
- a(0) =1a(1) =3a(2) =4a(3) =13a(4) =8a(5) =83a(6) =16a(7) =530a(8) =630a(9) =5620a(10) =57a(11) =119889a(12) =102a(13) =1901749a(14) =1498322a(15) =50091143a(16) =298a(17) =1649302673a(18) =491a(19) =54919254373a(20) =16723808377a(22) =1256a(24) =26852941986a(28) =4566
External references
- oeis: A330158