Number of nondecreasing arrangements of 9 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding four.
A189332
Number of nondecreasing arrangements of 9 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding four.
Terms
- a(0) =2a(1) =16a(2) =34a(3) =94a(4) =119a(5) =275a(6) =253a(7) =548a(8) =477a(9) =845a(10) =725a(11) =1375a(12) =951a(13) =1608a(14) =1522a(15) =2126a(16) =1511a(17) =2758a(18) =1809a(19) =3130a(20) =2557a(21) =3125a(22) =2312a(23) =4710a(24) =2551a(25) =3930a(26) =3502a(27) =4942a(28) =2922a(29) =6053
External references
- oeis: A189332