login

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”).

A108005 as a simple table

na(n)
01
13872
22607264
3692097472
498661128896
58805378871520
6540297451240544
724291330515458688
8838159768687139712
922993870562586186912
10515743632528903179808
119674499853189542968640
12154647276918381972394560
132140103736801433943911008
1425987290084278358334950880

[1,3872,2607264,692097472,98661128896,
 8805378871520,540297451240544,24291330515458688,
 838159768687139712,22993870562586186912,
 515743632528903179808,9674499853189542968640,
 154647276918381972394560,
 2140103736801433943911008,
 25987290084278358334950880]