Number of subsets of {1..n} that can be linearly combined using nonnegative coefficients to obtain n.

A365073

Number of subsets of {1..n} that can be linearly combined using nonnegative coefficients to obtain n.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =6a(4) =14a(5) =26a(6) =60a(7) =112a(8) =244a(9) =480a(10) =992a(11) =1944a(12) =4048a(13) =7936a(14) =16176a(15) =32320a(16) =65088a(17) =129504a(18) =261248a(19) =520448a(20) =1046208a(21) =2090240a(22) =4186624a(23) =8365696a(24) =16766464a(25) =33503744a(26) =67064064a(27) =134113280a(28) =268347392a(29) =536546816

External references