Expansion of 1/(1 - x + x^2 - x^3 - x^6 + x^7 - x^8 + x^9 - x^10 + x^11 - x^12 -x^15 + x^16 - x^17 + x^18).
A173911
Expansion of 1/(1 - x + x^2 - x^3 - x^6 + x^7 - x^8 + x^9 - x^10 + x^11 - x^12 -x^15 + x^16 - x^17 + x^18).
Terms
- a(0) =1a(1) =1a(2) =0a(3) =0a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =1a(10) =2a(11) =2a(12) =2a(13) =3a(14) =4a(15) =4a(16) =5a(17) =6a(18) =7a(19) =8a(20) =10a(21) =12a(22) =14a(23) =16a(24) =19a(25) =23a(26) =28a(27) =33a(28) =39a(29) =46
External references
- oeis: A173911