Irregular triangle read by row: T(n,k), n>=1, k>=1, in which column k lists the numbers of A000716 multiplied by A000330(k), and the first element of column k is in row A000217(k).
A252117
Irregular triangle read by row: T(n,k), n>=1, k>=1, in which column k lists the numbers of A000716 multiplied by A000330(k), and the first element of column k is in row A000217(k).
Terms
- a(0) =1a(1) =3a(2) =9a(3) =5a(4) =22a(5) =15a(6) =51a(7) =45a(8) =108a(9) =110a(10) =14a(11) =221a(12) =255a(13) =42a(14) =429a(15) =540a(16) =126a(17) =810a(18) =1105a(19) =308a(20) =1479a(21) =2145a(22) =714a(23) =30a(24) =2640a(25) =4050a(26) =1512a(27) =90a(28) =4599a(29) =7395
External references
- oeis: A252117