OFFSET
1,2
REFERENCES
Eric Angelini, Posting to Sequence Fans Mailing List, Oct 24 2018
LINKS
EXAMPLE
a(6)=720, so for a(7) we compute 7*720 = 5040 which becomes 54 = a(7).
CROSSREFS
KEYWORD
nonn,base,fini,full
AUTHOR
N. J. A. Sloane, Nov 03 2018
STATUS
approved