A026114 T(4n,n), where T is the array defined in A026105.

1, 3, 28, 275, 2834, 30020, 323817, 3537963, 39025125, 433641593, 4846850372, 54432520983, 613727606977, 6942918090500, 78767492060334, 895824168454107, 10210180642895226, 116591635975080084, 1333619552180129775, 15277391011739272885, 175247987032943618365

Offset: 0

Author

Clark Kimberling

Keywords

• nonn

Crossrefs

Cf. A026105.

Extensions

More terms and offset corrected by Sean A. Irvine, Sep 16 2019