3x2

345_groupements

3x2groupe

3x2grpa

formula1

formula2

formula3

formula4

formula5

2x3x5

5x7_a

2+3+5_events

5x7 croisements

2+3+5+7

5x7x11ev

5+7+11 events

2+3+5+7

2x3x5x7=effacement1

578events

235 hor+vert

2357events

5+7+8

correspondances_formules

cercles_inter_2

3x5x7_a

3x5x7

cercles_inter

melo_357

intercal1

cercle1

intercal

345_b

3x4x5

345couleur

345_nb

3x4x5_1

235

5+7+11+13

5+7+11+13_a

5+7+11+13_b

5+7+11+13_c

5005

5+7+11+13_e

4x5x6x7_i

4x5x6x7_h

4x5x6x7_g

4x5x6x7_f

4x5x6x7_d

4x5x6x7_e

4x5x6x7_b

4x5x6x7_c

4x5x6x7_a

4x5x6x7_rond