a(n) begins the first sequence of n consecutive positive integers with the same h-value and the same d-value in the Collatz (or '3x + 1') problem.

A341362

a(n) begins the first sequence of n consecutive positive integers with the same h-value and the same d-value in the Collatz (or '3x + 1') problem.

Terms

    a(0) =1a(1) =54a(2) =108a(3) =290a(4) =290a(5) =386a(6) =172146a(7) =298200a(8) =596400a(9) =596400a(10) =596400a(11) =795201a(12) =795201a(13) =2849196a(14) =2849196a(15) =8965036a(16) =33659819a(17) =45529226a(18) =52417676a(19) =93186987a(20) =104161282a(21) =104161282a(22) =104161282a(23) =436089218a(24) =436089218a(25) =605581697a(26) =934358530a(27) =934358530a(28) =934358530a(29) =3826876112

External references