1,2

Another rearrangement of natural numbers in which a(2k) is even and a(2k+1) is odd.

Table of n, a(n) for n=1..72.

17 follows 14 as 14+17 =31 and 17-14 = 3 both are prime and 17 is smallest such number not occurring earlier.

Cf. A084037, A084038.

Sequence in context: A166742 A022541 A063798 * A103702 A118517 A282848

Adjacent sequences: A084032 A084033 A084034 * A084036 A084037 A084038

base,nonn

Amarnath Murthy, May 26 2003

More terms from Ray Chandler, Jun 09 2003

approved