1,1

I. Rivin, Growth in free groups (and other stories)

T(r, m) = (2r-1)^m + 1 + (r-1)(1+(-1)^m).

2,2,2,2,2,2,2,2,2,

4,12,28,84,244,732,2188,6564,19684,

6,30,126,630,3126,15630,78126,390630,1953126,

8,56,344,2408,16808,117656,823544,5764808,40353608,

10,90,730,6570,59050,531450,4782970,43046730,387420490,

12,132,1332,14652,161052,1771572,19487172,214358892,2357947692,

14,182,2198,28574,371294,4826822,62748518,815730734,10604499374,

Sequence in context: A083791 A026251 A085190 this_sequence A013599 A138024 A021012

Adjacent sequences: A103997 A103998 A103999 this_sequence A104001 A104002 A104003

nonn,tabl

Ralf Stephan, Feb 26 2005