cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A259153 Triangle T(n,k) in which n-th row lists in increasing order the values v whose pi-based arithmetic derivative equals n; n>=0, 1<=k<=A259154(n).

Original entry on oeis.org

0, 1, 2, 3, 5, 4, 7, 11, 13, 6, 17, 19, 23, 29, 10, 31, 8, 9, 37, 41, 43, 14, 47, 53, 59, 61, 15, 67, 12, 71, 22, 73, 79, 83, 89, 26, 97, 21, 101, 103, 107, 109, 25, 113, 34, 127, 16, 20, 131, 18, 137, 139, 38, 149, 151, 33, 157, 163, 167, 173, 35, 46, 179
Offset: 0

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Author

Alois P. Heinz, Jun 19 2015

Keywords

Examples

			Triangle T(n,k) begins:
   0,  1;
   2;
   3;
   5;
   4,  7;
  11;
  13;
   6, 17;
  19;
  23;
  29;
  10, 31;
   8,  9, 37;
		

Crossrefs

Column k=1 gives A258861.
Last elements of rows give A008578(n+1).
Row lengths give A259154.
Row sums give A259155.

Formula

A258851(T(n,k)) = n.
T(n,1) = A258861(n).
T(n,A259154(n)) = A008578(n+1).
T(n,A259154(n)) = A000040(n) for n>0.