Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north, west or northeast neighbors modulo 5 and the upper left element equal to 0.
A267398
Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north, west or northeast neighbors modulo 5 and the upper left element equal to 0.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =12a(4) =36a(5) =135a(6) =626a(7) =3458a(8) =20470a(9) =120191a(10) =684920a(11) =3792099a(12) =20520497a(13) =109765721a(14) =587635957a(15) =3187862930a(16) =17709268921a(17) =101308744651a(18) =596444660998
External references
- oeis: A267398