A254530 a(n) = A181162(n) / n, n>=1.

1, 5, 47, 706, 14313, 374016, 11997457, 460158224, 20671937025, 1071624134224, 63368460514401, 4235641240358232, 317640391931394049, 26555904023833864616, 2461223025846241927425, 251574807412822558973536, 28223316187761759785968641, 3459174110134084070825015328, 461154818319652703166752585377, 66589665425419376047897811260040

Offset: 1

Author

Joerg Arndt, Feb 01 2015

Keywords

• nonn

Crossrefs

Cf. A181162.