If a Fibonacci sequence is formed with first term = number of digits in n and second term = sum of decimal digits in n, then n itself occurs as a term in the sequence after the first two terms.

A038868

If a Fibonacci sequence is formed with first term = number of digits in n and second term = sum of decimal digits in n, then n itself occurs as a term in the sequence after the first two terms.

Terms

    a(0) =16a(1) =21a(2) =25a(3) =50a(4) =66a(5) =102a(6) =115a(7) =154a(8) =193a(9) =291a(10) =471a(11) =573a(12) =675a(13) =777a(14) =879a(15) =2372a(16) =3668a(17) =4770a(18) =6867a(19) =22502a(20) =22790a(21) =32084a(22) =41666a(23) =46457a(24) =167151a(25) =331341a(26) =490740a(27) =1750051a(28) =2125176a(29) =2275226

External references