0,3

Table of n, a(n) for n=0..10.

a(3) = 10: (1,1,1), (1,1,3), (1,2,1), (1,2,2), (1,2,3), (1,3,3), (2,2,2), (2,2,3), (3,2,3), (3,3,3).

Column k=6 of A247026.

Sequence in context: A329258 A009648 A007125 * A102911 A096752 A293554

Adjacent sequences: A247050 A247051 A247052 * A247054 A247055 A247056

nonn,more

Alois P. Heinz, Sep 10 2014

Offset corrected by Vincenzo Librandi, Sep 11 2014

a(8) from Alois P. Heinz, Sep 26 2014

a(9)-a(10) from Bert Dobbelaere, Jan 24 2019

approved