[seqfan] Re: x(i-1) = ( x(i+1) - x(i)) mod M, period-N solutions?

Ron Hardin rhhardin at att.net
Sat Sep 4 16:51:08 CEST 2010



> full current table  occasionally updated at
> http://rhhardin.home.mindspring.com/current5.txt
> 
> Ideas, formulas, is  it already in OEIS in some form...?


Records encoutnered in anti-diagonal order

N M solutions
3 2 3
4 5 4
6 4 15
12 8 63
10 11 120
24 12 143
16 21 440
14 29 840
18 38 1443
24 48 2303
20 55 3024
30 62 3843
18 76 5775
48 84 7055
44 89 7920
48 92 8463
48 96 9215
50 101 10200
30 124 15375
24 144 20735
36 152 23103
40 165 27224
48 168 28223
22 199 39600
40 205 42024
42 211 44520
48 224 50175
52 233 54288
48 252 63503
48 276 76175
48 288 82943
36 323 104328





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