Number of subsets of {1..n} that cannot be linearly combined using positive coefficients to obtain n.

A365322

Number of subsets of {1..n} that cannot be linearly combined using positive coefficients to obtain n.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =5a(4) =11a(5) =26a(6) =54a(7) =116a(8) =238a(9) =490a(10) =994a(11) =2011a(12) =4045a(13) =8131a(14) =16305a(15) =32672a(16) =65412a(17) =130924a(18) =261958a(19) =524066a(20) =1048301a(21) =2096826a(22) =4193904a(23) =8388135a(24) =16776641a(25) =33553759a(26) =67108053a(27) =134216782a(28) =268434324a(29) =536869595

External references