Triangle read by rows: T(n,k), 0 <= k <= n, is the smallest number that has n distinct prime factors, k of which are unique.

A364878

Triangle read by rows: T(n,k), 0 <= k <= n, is the smallest number that has n distinct prime factors, k of which are unique.

Terms

    a(0) =1a(1) =4a(2) =2a(3) =36a(4) =12a(5) =6a(6) =900a(7) =180a(8) =60a(9) =30a(10) =44100a(11) =6300a(12) =1260a(13) =420a(14) =210a(15) =5336100a(16) =485100a(17) =69300a(18) =13860a(19) =4620a(20) =2310a(21) =901800900a(22) =69369300a(23) =6306300a(24) =900900a(25) =180180a(26) =60060a(27) =30030a(28) =260620460100a(29) =15330615300

External references