1,1

4

6 8

8 10 12

9 12 15 18

10 12 14 16 18

12 14 16 18 20 22

...

Table of n, a(n) for n=1..58.

Cf. A079775, A079776.

Sequence in context: A098573 A092753 A276338 * A311555 A311556 A311557

Adjacent sequences: A079771 A079772 A079773 * A079775 A079776 A079777

nonn

Amarnath Murthy, Jan 31 2003

Corrected and extended by Frank Ellermann, Jul 11 2003

approved