Irregular triangle where the n-th row list the positive integers which can be written in two bases smaller than n as mutually-reversed strings of digit(s), for n>=4.

A336768

Irregular triangle where the n-th row list the positive integers which can be written in two bases smaller than n as mutually-reversed strings of digit(s), for n>=4.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =22a(4) =1a(5) =2a(6) =3a(7) =7a(8) =22a(9) =1a(10) =2a(11) =3a(12) =4a(13) =7a(14) =22a(15) =87a(16) =9831a(17) =1a(18) =2a(19) =3a(20) =4a(21) =5a(22) =7a(23) =9a(24) =17a(25) =22a(26) =51a(27) =87a(28) =102a(29) =2601

External references