I have a set of sheep counting rhymes, several being variations on the British (as in Welsh) which gave rise to the yan tan tethera sequence above. I hoped they were on the hard disk, but they are obviously elsewhere. I don't, unfortunately have the provenance for them. I azlso have a set of counting out rhymes, some of which are probably related, either by being derived from the sheep rhymes, or from the original number words. I used them only the other week in school, so I'll post them if anyone's interested. I thought I got them here, so I may not be able to find where I got them from.

Numerically, they are interesting, as they use a five, rather than ten base for the words (apart from the Sussex one above), once past ten.

Yan tan tethera pethera pimp Sethera methera hovera covera dick Yanadick tanadick tetheradick petheradick bunkin Yanabunkin tanabunkin tetherabunkin petherabunkin ......

Bunkin is definitely one of the 15 words. I can't remember 20, and it's not one that can be derived from the others.

Penny