Number of 0..4 arrays x(0..n-1) of n elements with each no smaller than the sum of its three previous neighbors modulo 5.
A200664
Number of 0..4 arrays x(0..n-1) of n elements with each no smaller than the sum of its three previous neighbors modulo 5.
Terms
- a(0) =5a(1) =15a(2) =45a(3) =135a(4) =406a(5) =1217a(6) =3650a(7) =10959a(8) =32941a(9) =99044a(10) =297812a(11) =895494a(12) =2692703a(13) =8096855a(14) =24346869a(15) =73209872a(16) =220138513a(17) =661945308a(18) =1990435887a(19) =5985139586a(20) =17997009753a(21) =54116091662a(22) =162724331983a(23) =489303778636
External references
- oeis: A200664