Number of 7-compositions of n: matrices with 7 rows of nonnegative integers with positive column sums and total element sum n.
A261799
Number of 7-compositions of n: matrices with 7 rows of nonnegative integers with positive column sums and total element sum n.
Terms
- a(0) =1a(1) =7a(2) =77a(3) =819a(4) =8687a(5) =92141a(6) =977347a(7) =10366833a(8) =109962202a(9) =1166381804a(10) =12371946734a(11) =131230670312
External references
- oeis: A261799