Expansion of 1/((1+x)*(1+3*x)*(1-4*x)).

Terms

a(0) =1a(1) =0a(2) =13a(3) =12a(4) =169a(5) =312a(6) =2341a(7) =6084a(8) =34177a(9) =107184a(10) =517309a(11) =1803516a(12) =8011225a(13) =29653416a(14) =125788117a(15) =481629108a(16) =1991086513a(17) =7770635808a(18) =31663673965a(19) =124911303660a(20) =504875391241