OFFSET
1,6
LINKS
V. A. Liskovets, Some easily derivable sequences, J. Integer Sequences, 3 (2000), #00.2.2.
MATHEMATICA
nmax = 47;
Array[a, nmax] (* Jean-François Alcover, Aug 27 2019, after Andrew Howroyd *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 24 2000
EXTENSIONS
Missing a(1) inserted and a(32)-a(47) from Andrew Howroyd, Nov 27 2018
STATUS
approved