Number of n X 3 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.

A278358

Number of n X 3 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.

Terms

    a(0) =4a(1) =27a(2) =142a(3) =701a(4) =3183a(5) =12875a(6) =46236a(7) =149099a(8) =438091a(9) =1188762a(10) =3012869a(11) =7198373a(12) =16335098a(13) =35425161a(14) =73791748a(15) =148267982a(16) =288389734a(17) =544658465a(18) =1001416052a(19) =1796525377a(20) =3150931185a(21) =5412350915a(22) =9118895376a(23) =15090442305a(24) =24558200485a(25) =39346250424a(26) =62123099187a(27) =96746642857

External references