Numbers occurring at least three times in Bernoulli's triangle A008949.

Terms

a(0) =1a(1) =16a(2) =64a(3) =232a(4) =256a(5) =466a(6) =562a(7) =1024a(8) =1486a(9) =2048a(10) =4096a(11) =15226a(12) =16384a(13) =44552a(14) =65536a(15) =262144a(16) =1048576a(17) =4194304a(18) =16777216a(19) =67108864a(20) =268435456a(21) =1073741824a(22) =4294967296a(23) =17179869184a(24) =68719476736a(25) =274877906944