OFFSET
1,1
COMMENTS
a(n) = A053438(n) for 1 <= n < 1065, but then the two sequences start to differ. - R. J. Mathar, Oct 26 2020
LINKS
N. J. A. Sloane, Table of n, a(n) for n = 1..20000
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 18 2020
STATUS
approved