Number of 0..4 colorings of a 1 X (n+1) array circular in the n+1 direction with new values 0..4 introduced in row major order.
A214142
Number of 0..4 colorings of a 1 X (n+1) array circular in the n+1 direction with new values 0..4 introduced in row major order.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =11a(4) =40a(5) =147a(6) =568a(7) =2227a(8) =8824a(9) =35123a(10) =140152a(11) =559923a(12) =2238328a(13) =8950579a(14) =35796856a(15) =143176499a(16) =572684152a(17) =2290692915a(18) =9162684280a(19) =36650562355a(20) =146601899896a(21) =586406900531
External references
- oeis: A214142