Sequence Ranunculus

Sequences Ranunculus_(Drop)

	0	1	2	3	4	5	6	7
🌊 Ranunculus (Template:Oeis)	1	2	6	30	270	4590	151470	9845550
💧 RanunculusDrop (Template:Oeis)	1	1	4	24	240	4320	146880	9694080
2n − 1		1	2	4	8	16	32	64

$\text{for}n>0\text{:}\text{RanunculusDrop}(n)=2^{n-1}\cdot \text{Ranunculus}(n-1)$

Template:AnchorSequence TornRanunculus

Half of Ranunculus for positive keys.

	0	1	2	3	4	5	6	7
🌊 TornRanunculus (Template:Oeis)	1	1	3	15	135	2295	75735	4922775
💧 TornRanunculusDrop	1	0	2	12	120	2160	73440	4847040
Template:Oeis			1	6	60	1080	36720	2423520