OFFSET
1,3
COMMENTS
Row 1 of A214141.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) -7*a(n-2) -6*a(n-3) +8*a(n-4).
Empirical: a(n) = 2^n/6 - 11*(-1)^n/30 + 4^n/30 + 1/6. - R. J. Mathar, Jul 07 2012
Empirical: partial sums of A110613. - Sean A. Irvine, Jul 14 2022
EXAMPLE
Some solutions for n=4:
0 1 2 0 1 0 1 2 3 1 0 1 0 1 2 0 1 2 1 2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 05 2012
STATUS
approved