OFFSET
1,2
COMMENTS
The variant where "n divides a(n) + a(n+1)" corresponds to A005408 (the odd numbers).
Empirically, the scatterplot of the first terms shows a bundle of curves that correspond to terms sharing the same value of Sum_{k=2.. n} ((-1)^k (a(k+1) + a(k))/k) (see Links section); the sequence A134204 has similar features.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, Colored scatterplot of the first 10000 terms
Rémy Sigrist, Colored scatterplot of the first 100000 terms
Rémy Sigrist, PARI program for A294734
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Nov 07 2017
STATUS
approved