Ok, as I am also getting back in to electronics, I have now built 2 circuits, and linked them together. Firstly a 555 timer circuit, and secondly a 4017be decade counter linked to some LEDs,
The 555 is wired up as a Astable the output is linked to the counter input of the 4017
This is used for the led sequencer
I am only using 4 leds at the moment but it works.