Coefficients in the series (1 + x - 4x^4 - 6x^6 - 8x^8 - 9x^9 - 10x^10 - 12x^12 - 14x^14 - ... )/(1 - 2x^2 - 3x^3 - 5x^5 - 7x^7 - 11x^11 - 13x^13 - ... ).
A058357
Coefficients in the series (1 + x - 4x^4 - 6x^6 - 8x^8 - 9x^9 - 10x^10 - 12x^12 - 14x^14 - ... )/(1 - 2x^2 - 3x^3 - 5x^5 - 7x^7 - 11x^11 - 13x^13 - ... ).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =3a(5) =21a(6) =20a(7) =68a(8) =127a(9) =216a(10) =588a(11) =945a(12) =2310a(13) =4464a(14) =9065a(15) =19731a(16) =38039a(17) =82599a(18) =165226a(19) =342520a(20) =711496a(21) =1442555a(22) =3015297a(23) =6145475a(24) =12711995a(25) =26183208a(26) =53750956a(27) =111108083a(28) =228062512a(29) =470499012
External references
- oeis: A058357