A171219 A138101(n)+A168142(n).

5, 5, 21, 21, 21, 21, 21, 21, 21, 21, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121

Offset: 1

Author

Paul Curtz, Dec 05 2009

Keywords

• nonn
• easy
• less

Comments

This here basically repeats entries A168388(2k+1) 2*k^2 times for k=1,2,....

The construction is similar to A168234.

Extensions

Comments tightened - R. J. Mathar, Nov 24 2010