Number of nondecreasing arrangements of n+2 numbers in 0..3 with each number being the sum mod 4 of two others.
A183906
Number of nondecreasing arrangements of n+2 numbers in 0..3 with each number being the sum mod 4 of two others.
Terms
- a(0) =2a(1) =5a(2) =17a(3) =38a(4) =67a(5) =105a(6) =153a(7) =212a(8) =283a(9) =367a(10) =465a(11) =578a(12) =707a(13) =853a(14) =1017a(15) =1200a(16) =1403a(17) =1627a(18) =1873a(19) =2142a(20) =2435a(21) =2753a(22) =3097a(23) =3468a(24) =3867a(25) =4295a(26) =4753a(27) =5242a(28) =5763a(29) =6317
External references
- oeis: A183906