A059580 Main diagonal of the array A059579.

1, 4, 52, 912, 17992, 377004, 8189036, 182127464, 4118242896, 94264009684, 2177854717348, 50687305553024, 1186694487776152, 27918432252733692, 659490547066121820, 15632281755808999768, 371637556504994957728, 8857868330404952584100, 211598146901545394669844

Offset: 1

Author

Floor van Lamoen, Jan 23 2001

Keywords

• easy
• nonn

Extensions

More terms from Sean A. Irvine, Sep 29 2022