a(n) is the smallest k such that the Collatz sequence for k includes a record number of consecutive tripling steps.

A350370

a(n) is the smallest k such that the Collatz sequence for k includes a record number of consecutive tripling steps.

Terms

    a(0) =1a(1) =3a(2) =7a(3) =15a(4) =27a(5) =127a(6) =255a(7) =511a(8) =1023a(9) =1819a(10) =4095a(11) =4255a(12) =16383a(13) =32767a(14) =65535a(15) =77671a(16) =262143a(17) =459759a(18) =1048575a(19) =2097151a(20) =4194303a(21) =7456539a(22) =16777215a(23) =33554431a(24) =67108863a(25) =125687199a(26) =1073741823a(27) =2147483647a(28) =4294967295a(29) =8589934591

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