1,2

The first non-fixed term is a(37)=49.

Table of n, a(n) for n=1..85.

Index entries for sequences that are permutations of the natural numbers

a(n) = A269172(3*n) / 3.

(Scheme) (define (A269394 n) (/ (A269172 (* 3 n)) 3))

Inverse: A269393.

Cf. A269172, A269396.

Sequence in context: A296870 A085735 A269393 * A273884 A273058 A044922

Adjacent sequences: A269391 A269392 A269393 * A269395 A269396 A269397

nonn

Antti Karttunen, Mar 03 2016

approved