A139537 Digit sum of Fibonacci primes.

2, 3, 5, 4, 17, 8, 22, 28, 23, 41, 37, 98, 116, 112, 343, 424, 388, 409, 473, 526, 527, 2678, 4208, 5102, 8587, 9023, 13576, 24040, 28898, 33787, 35218, 47719, 77842, 98257, 122543, 139256, 188837, 374174, 409118, 555355, 557992, 568246, 873941, 987592, 1210312

Offset: 1

Author

Parthasarathy Nambi, Jun 09 2008

Keywords

• nonn
• base

Examples

			514229 is a Fibonacci prime whose digit sum is 23.
		

Links

• James C. McMahon, Table of n, a(n) for n = 1..56
• Ron Knott, List of Fibonacci numbers.

Crossrefs

Cf. A007953, A005478, A001605.

Subsequence of A004090.

Programs

Mathematica

DigitSum/@Select[Fibonacci[Range[10000]],PrimeQ] (* James C. McMahon, Jun 30 2025 *)

Formula

a(n) = A007953(A005478(n)) and a(n) = A004090(A001605(n)). - Michel Marcus, Jun 30 2025

Extensions

a(22)-a(34) and a(35) onwards (using A001605) from James C. McMahon, Jun 30 2025