Number of subsets of {1..n} whose cardinality cannot be written as a nonnegative linear combination of the elements.

A367223

Number of subsets of {1..n} whose cardinality cannot be written as a nonnegative linear combination of the elements.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =2a(4) =4a(5) =8a(6) =15a(7) =27a(8) =49a(9) =90a(10) =165a(11) =301a(12) =548a(13) =998a(14) =1819a(15) =3316a(16) =6040a(17) =10986a(18) =19959a(19) =36253a(20) =65904a(21) =119986a(22) =218796a(23) =399461a(24) =729752a(25) =1333162a(26) =2434411a(27) =4441954a(28) =8097478a(29) =14746715

External references