A082973 Fibonacci numbers which are of the form Sum{i=1..k} prime(i) for some k.

2, 5, 2584

Offset

0,1

Links

Table of n, a(n) for n=0..2.

Example

5 is in the sequence because 5 is both Fibonacci(5) and 2+3. 2584 is Fibonacci(18) and 2+3+5+7+11+...+151+157 (first 37 primes)

Prog

(PARI) { ps=2; pc=1; fc=1; while (fc<50, while (ps<=fibonacci(fc), if (ps==fibonacci(fc), print1(ps"; "fc", ")); ps+=prime(pc++)); fc++) }

Crossrefs

Sequence in context: A101341 A079014 A215436 * A306747 A187604 A082815

Adjacent sequences: A082970 A082971 A082972 * A082974 A082975 A082976

Keyword

nonn,bref

Author

Jon Perry, May 28 2003

Status

approved