OFFSET
1,2
COMMENTS
LINKS
EXAMPLE
PROG
(Scheme, with Antti Karttunen's IntSeq-library, two alternatives)
(define A257508 (MATCHING-POS 1 0 (lambda (n) (or (zero? (A079559 (A213723 n))) (zero? (A079559 (A213724 n))))))) ;; Compare to the definition of A257512.
(Haskell)
a257508 n = a257508_list !! (n-1)
a257508_list = filter ((== 1) . a257265) [0..]
-- Reinhard Zumkeller, May 06 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 03 2015
STATUS
approved