Table read by rows of numbers of unordered pairs of partitions of n-element set that have Rand distance k (n>=2, 1 <= k <= n(n-1)/2).

A192100

Table read by rows of numbers of unordered pairs of partitions of n-element set that have Rand distance k (n>=2, 1 <= k <= n(n-1)/2).

Terms

    a(0) =1a(1) =3a(2) =6a(3) =1a(4) =12a(5) =30a(6) =32a(7) =24a(8) =6a(9) =1a(10) =50a(11) =150a(12) =280a(13) =300a(14) =240a(15) =220a(16) =60a(17) =15a(18) =10a(19) =1a(20) =225a(21) =780a(22) =1720a(23) =3360a(24) =3426a(25) =4100a(26) =2400a(27) =2700a(28) =1075a(29) =471

External references