A[n]は、アルキル基の構造異性体の数 B[n]は、アルカンの構造異性体の数 *** pazul started : Fri Jul 09 21:33:17 1999 A[N] B[N] *** N = 1 1 1 *** N = 2 1 1 *** N = 3 2 1 *** N = 4 4 2 *** N = 5 8 3 *** N = 6 17 5 *** N = 7 39 9 *** N = 8 89 18 *** N = 9 211 35 *** N = 10 507 75 *** N = 11 1238 159 *** N = 12 3057 355 *** N = 13 7639 802 *** N = 14 19241 1858 *** N = 15 48865 4347 *** N = 16 124906 10359 *** N = 17 321198 24894 *** N = 18 830219 60523 *** N = 19 2156010 148284 *** N = 20 5622109 366319 *** N = 21 14715813 910726 *** N = 22 38649152 2278658 *** N = 23 101821927 5731580 *** N = 24 269010485 14490245 *** N = 25 712566567 36797588 *** N = 26 1891993344 93839412 *** N = 27 5034704828 240215803 *** N = 28 13425117806 617105614 *** N = 29 35866550869 1590507121 *** N = 30 95991365288 4111846763 *** N = 31 257332864506 10660307791 *** N = 32 690928354105 27711253769 *** N = 33 1857821351559 72214088660 *** N = 34 5002305607153 188626236139 *** N = 35 13486440075669 493782952902 *** N = 36 36404382430278 1295297588128 *** N = 37 98380779170283 3404490780161 *** N = 38 266158552000477 8964747474595 *** N = 39 720807976831447 23647478933969 *** N = 40 1954002050661819 62481801147341 *** N = 41 5301950692017063 165351455535782 *** N = 42 14398991611139217 438242894769226 *** N = 43 39137768751465752 1163169707886427 *** N = 44 106465954658531465 3091461011836856 *** N = 45 289841389106439413 8227162372221203 *** pazul ended time = 40 ms : Fri Jul 09 21:33:17 1999