OFFSET
0,2
LINKS
Amiram Eldar, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (4,-6,4,-1).
FORMULA
a(n) = 2*A077414(n+1).
Sum_{n>=1} 1/a(n) = 7/36. - Amiram Eldar, Oct 07 2020
Sum_{n>=1} (-1)^(n+1)/a(n) = 2*log(2)/3 - 13/36. - Amiram Eldar, Feb 22 2022
MATHEMATICA
Table[n*(n + 1)*(n + 3), {n, 0, 43}] (* Giovanni Resta, Aug 10 2018 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Renzo Remotti, Aug 02 2018
STATUS
approved