The number of upper-triangular matrices whose nonzero entries are positive odd numbers summing to n and each row contains a nonzero entry.
A289316
The number of upper-triangular matrices whose nonzero entries are positive odd numbers summing to n and each row contains a nonzero entry.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =8a(4) =37a(5) =219a(6) =1557a(7) =12994a(8) =124427a(9) =1344506a(10) =16178891a(11) =214522339a(12) =3107144562a(13) =48805300668a(14) =826268787588
External references
- oeis: A289316