Number of subsets of {1..n} containing n such that some element can be written as a nonnegative linear combination of the others.

A365046

Number of subsets of {1..n} containing n such that some element can be written as a nonnegative linear combination of the others.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =2a(4) =6a(5) =11a(6) =28a(7) =53a(8) =118a(9) =235a(10) =490a(11) =973a(12) =2008a(13) =3990a(14) =8089a(15) =16184a(16) =32563a(17) =65071a(18) =130667a(19) =261183a(20) =523388a(21) =1046748a(22) =2095239a(23) =4190208a(24) =8385030a(25) =16768943a(26) =33546257a(27) =67092732a(28) =134201461a(29) =268400553

External references