Number of nX6 0..1 arrays with rows, antidiagonals and columns unimodal.

A223635

Number of nX6 0..1 arrays with rows, antidiagonals and columns unimodal.

Terms

    a(0) =22a(1) =484a(2) =5699a(3) =42109a(4) =230619a(5) =1026377a(6) =3907140a(7) =13135511a(8) =39889555a(9) =111242770a(10) =288488044a(11) =702553878a(12) =1619299148a(13) =3555008655a(14) =7473337157a(15) =15110365462a(16) =29495673113a(17) =55765989646a(18) =102405932407a(19) =183099750019a(20) =319441371676

External references