A004397 a(n) = prime(n) + Fibonacci(n).

3, 4, 7, 10, 16, 21, 30, 40, 57, 84, 120, 181, 274, 420, 657, 1040, 1656, 2645, 4248, 6836, 11019, 17790, 28740, 46457, 75122, 121494, 196521, 317918, 514338, 832153, 1346396, 2178440, 3524715, 5703026, 9227614, 14930503, 24157974, 39088332, 63246153

Offset

1,1

References

GCHQ, The GCHQ Puzzle Book, Penguin, 2016. See page 79.

Links

Table of n, a(n) for n=1..39.

Maple

with(combinat): f := n -> fibonacci(n) + ithprime(n);

Mathematica

Table[Fibonacci[n] + Prime[n], {n, 35}]

Prog

(Magma) [NthPrime(n)+Fibonacci(n): n in [1..50]]; // Vincenzo Librandi, Jul 29 2016

Crossrefs

Cf. A100700.

Sequence in context: A368896 A237833 A275633 * A324368 A241654 A047967

Adjacent sequences: A004394 A004395 A004396 * A004398 A004399 A004400

Keyword

nonn

Author

Hegermann, Frank (hegermann(AT)oi.dbv.commerzbank.dbp.de)

Status

approved