a(1)=1 (first row) and then the n-th row of this triangle contains the least set of n unused natural numbers whose sum is k * the sum of the previous row, with k being an integer > 1.
A094280
a(1)=1 (first row) and then the n-th row of this triangle contains the least set of n unused natural numbers whose sum is k * the sum of the previous row, with k being an integer > 1.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =9a(9) =21a(10) =10a(11) =11a(12) =12a(13) =13a(14) =44a(15) =14a(16) =15a(17) =16a(18) =17a(19) =18a(20) =100a(21) =19a(22) =20a(23) =22a(24) =23a(25) =24a(26) =25a(27) =227a(28) =26a(29) =27
External references
- oeis: A094280