A302308 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A302308 as a simple table

n	a(n)
1	21
2	363
3	275
4	2048
5	4772
6	18992
7	76642
8	364922
9	1991487
10	11850372
11	74391348
12	486418706
13	3257213385
14	22149432404
15	152046330078
16	1049873091893
17	7276150005243
18	50546516116050
19	351666937737820
20	2449012961612884

[21,363,275,2048,4772,18992,76642,364922,1991487, 11850372,74391348,486418706,3257213385, 22149432404,152046330078,1049873091893, 7276150005243,50546516116050,351666937737820, 2449012961612884]