Triangle T(n,k) read by rows of the smallest n-gonal number greater than 1 that is also k-gonal, or 0 if none exists, for 3 <= k <= n.
A189216
Triangle T(n,k) read by rows of the smallest n-gonal number greater than 1 that is also k-gonal, or 0 if none exists, for 3 <= k <= n.
Terms
- a(0) =3a(1) =36a(2) =4a(3) =210a(4) =9801a(5) =5a(6) =6a(7) =1225a(8) =40755a(9) =6a(10) =55a(11) =81a(12) =4347a(13) =121771a(14) =7a(15) =21a(16) =225a(17) =176a(18) =11781a(19) =297045a(20) =8a(21) =325a(22) =9a(23) =651a(24) =325a(25) =26884a(26) =631125a(27) =9a(28) =10a(29) =0
External references
- oeis: A189216