another puzzle

[jens at voss-ahrensburg.de]

N. J. A. Sloane wrote:

>
> %S A000001 2 29 590 7011 60324
> %N A000001 "Gold, with six bars, or with the visor raised (in full
face) for royalty"
> "Silver, with five bars, (in full face) for a duke or marquis"
> "Silver, with four bars, with visor raised (in profile) for an earl,
viscount or baron"
> "Steel, without bars, and with visor open (in full face) for a knight
or a baronet"
> "Steel, with visor closed (in profile) for a squire or a gentleman"
>
> riddle me this

Hmm, somehow this reminds me of another puzzling, yet well-known
sequence:

3, 7, 9, 1 (sorry, no more terms; this sequence is very finite)

Any ideas anyone?

Regards,
Jens