33 



(30^ 



s^ = {ach) [d/e), 

 §2 = {adbecf), 

 s-i = {afbdce), 

 s^ = (aebfcd). 



Likheten 



(31) s2 = (abc) {de/) {ghi) [jU) = {adcfjbehkcfil)^ 



kan ha högst 3*X l-2-3-4+l=: 1945 lösningar. Man fin- 



ner emellertid; att dessa icke alla äro olika, 

 dast följande 25 äro distinkta: 



s^ = {acb) {d/e) {gih) {jlk\ 

 §2 = {adbecf) {gjhkil}, 

 §3 == (adbecf) {glhjik), 

 s^ = (adbecf) (gkhlij), 

 Sg = (aebfcd) {gjhkil}^ 

 Sq = (aebfcd) (glhjik)^ 

 s^ = (aebfcd) (gjchlij), 

 5g = (afbdce) (gjhkil), 

 Sq = (afbdce) (glhjik), 

 ho = (afbdce) (gkhlij), 

 s^ = (agbhci) (djekfl)^ 

 Si2 = (agbhci) (dlejfk)^ 

 (32) {sxz = (agbhci) (dkelfj\ 



s^^ = (ahbicg) (djekfl)^ 

 ^15 = (ahbicg) (dlejfk)^ 

 5je = (ahbicg) (dkelfi), 

 Sj, = (aibgch) (djekft)^ 

 Sis = (aibgch) (dlejfk)^ 

 Sjg = (aibgch) (dkelfj), 

 ^20 = (ajbkcl) (dgehfi), 

 §21 = (ajbkcl) (gdheif)^ 

 §22 = (ajbkcl) (gfhdie)^ 

 §23 = (albjck) (dgehfi)^ 

 §24 = (albjck) (gdheif)^ 

 §25 = (albjck) (gfhdie). 



Vi tro att en- 



Likheten 



(33) 



s^ = (abcd) (efgh) = (aebfcgdh)^ 



