A306640 Array read by antidiagonals: A(n,k) (n,k >= 2) is the base-n state complexity of the partitioned finite deterministic automaton (PFDA) for the periodic sequence (123..k)*.
3, 6, 2, 7, 4, 3, 20, 8, 3, 2, 13, 20, 5, 6, 3, 21, 7, 10, 4, 4, 2, 15, 42, 7, 6, 9, 3, 3, 54, 16, 21, 12, 5, 8, 6, 2, 41, 13, 13, 42, 7, 20, 5, 4, 3, 110, 40, 27, 16, 14, 6, 20, 4, 3, 2, 27, 55, 21, 54, 23, 8, 13, 10, 9, 6, 3, 156, 25, 55, 11
Offset: 1
Examples
Array begins:
3 2 3 2 3
6 4 3 6 4
7 8 5 4 9 ...
20 20 10 6 5
13 7 7 12 7
...
Links
- Charlie Neder, First 45 antidiagonals, flattened
- Klaus Sutner and Sam Tetruashvili, Inferring Automatic Sequences.
Crossrefs
Formula
A(n,n^k) = Sum_{i=0..k} n^i.
A(n+1,n) = n.
It also appears that A(n-1,n) = 2n.
Comments