Number of arrangements of n+2 numbers in 0..3 with each number being the sum mod 4 of two others.
A183878
Number of arrangements of n+2 numbers in 0..3 with each number being the sum mod 4 of two others.
Terms
- a(0) =4a(1) =35a(2) =446a(3) =2827a(4) =13686a(5) =59859a(6) =250198a(7) =1023347a(8) =4140830a(9) =16663627a(10) =66867438a(11) =267922683a(12) =1072654438a(13) =4292666147a(14) =17175010598a(15) =68709242467a(16) =274856398542
External references
- oeis: A183878