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On 08/21/94 at 06:33:02 der Mouse said: >> Dan's recursion formula is:

P[n] <= 4*2*P[n-1] + 6*2*P[n-2] + 4*2*P[n-3] + 1*2*P[n-4]>Dan's calculations:

P[0] = 1 P[1] = 12 P[2] = 114 P[3] = 1,068 P[4] = 10,011Ummm. 4*2*P[4-1] + 6*2*P[4-2] + 4*2*P[4-3] + 1*2*P[4-4] = 4*2*1068 + 6*2*114 + 4*2*12 + 1*2*1 = 10010 < P[4].What have I missed? Is Dan's formula not valid until n=5 or something?

I just rechecked Dan's original note of 9 January 1981. He specifically

says the formula is good for n > 4. Mea culpa. However, I still do

not fully understand *why* this should be the case.

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Robert G. Bryan (Jerry Bryan) (304) 293-5192 Associate Director, WVNET (304) 293-5540 fax 837 Chestnut Ridge Road BRYAN@WVNVM Morgantown, WV 26505 BRYAN@WVNVM.WVNET.EDU

If you don't have time to do it right today, what makes you think you are

going to have time to do it over again tomorrow?