Search: id:A046182 Results 1-1 of 1 results found. %I A046182 %S A046182 1,6,153,638,15041,62566,1473913,6130878,144428481,600763526, %T A046182 14152517273,58868694718,1386802264321,5768531318886,135892469386233, %U A046182 565257200556158,13316075197586561,55389437123184646 %N A046182 Indices of triangular numbers which are also octagonal. %H A046182 Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics. %F A046182 For n odd, a(n+2)=98*a(n+1)-a(n)+48; for n even, a(n+1)=49*a(n)+24+10*(24*a(n)^2+24*a(n)+16)^0.5 - Richard Choulet (richardchoulet(AT)yahoo.fr), Oct 03 2007, Oct 09 2007 %Y A046182 Cf. A046181, A046183, A046190. %Y A046182 Cf. A046181 A046183. %Y A046182 Sequence in context: A165436 A147796 A003766 this_sequence A092122 A003460 A157626 %Y A046182 Adjacent sequences: A046179 A046180 A046181 this_sequence A046183 A046184 A046185 %K A046182 nonn %O A046182 1,2 %A A046182 Eric Weisstein (eric(AT)weisstein.com) %E A046182 More terms from Richard Choulet (richardchoulet(AT)yahoo.fr), Oct 03 2007 Search completed in 0.001 seconds