Number of words of length n, over the alphabet {a,b,c}, which have an odd number of a's and the number of b's plus the number of c's is less than or equal to 3.
A342159
Number of words of length n, over the alphabet {a,b,c}, which have an odd number of a's and the number of b's plus the number of c's is less than or equal to 3.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =13a(4) =40a(5) =41a(6) =172a(7) =85a(8) =464a(9) =145a(10) =980a(11) =221a(12) =1784a(13) =313a(14) =2940a(15) =421a(16) =4512a(17) =545a(18) =6564a(19) =685a(20) =9160a(21) =841a(22) =12364a(23) =1013a(24) =16240a(25) =1201a(26) =20852a(27) =1405a(28) =26264a(29) =1625
External references
- oeis: A342159