A352015 Square array read by antidiagonals upwards: T(n,k) is the n-th number m such that the symmetric representation of sigma(m) has at least one subpart k, with n >= 1, k >= 1, m >= 1.
1, 6, 3, 15, 18, 2, 28, 45, 5, 7, 45
Offset: 1
Examples
The corner of the square array looks like this: 1, 3, 2, 7, ... 6, 18, 5, ... 15, 45, ... 28, ... ... For n = 3 and k = 2 we have that 45 is the third positive integer m whose symmetric representation of sigma(m) has at least one subpart 2, so T(3,2) = 45. For n = 5 and k = 1 we have that 45 is also the fifth positive integer m whose symmetric representation of sigma(m) has at least one subpart 1, so T(5,1) = 45.