Number of n X 3 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the sum of elements above it, modulo 3.
A238807
Number of n X 3 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the sum of elements above it, modulo 3.
Terms
- a(0) =4a(1) =15a(2) =48a(3) =118a(4) =254a(5) =498a(6) =916a(7) =1605a(8) =2702a(9) =4395a(10) =6936a(11) =10656a(12) =15982a(13) =23456a(14) =33756a(15) =47719a(16) =66366a(17) =90929a(18) =122880a(19) =163962a(20) =216222a(21) =282046a(22) =364196a(23) =465849a(24) =590638a(25) =742695a(26) =926696a(27) =1147908a(28) =1412238a(29) =1726284
External references
- oeis: A238807