A247337 a(n) = Lucas(n) concatenated with Fibonacci(n).

20, 11, 31, 42, 73, 115, 188, 2913, 4721, 7634, 12355, 19989, 322144, 521233, 843377, 1364610, 2207987, 35711597, 57782584, 93494181, 151276765, 2447610946, 3960317711, 6407928657, 10368246368, 16776175025, 271443121393, 439204196418, 710647317811, 1149851514229

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Mathematica

Table[FromDigits[Join[Flatten[IntegerDigits[{LucasL[n], Fibonacci[n]}]]]], {n, 0, 50}]

Prog

(Magma) [20] cat [Seqint(Intseq(Fibonacci(n)) cat Intseq(Lucas(n))): n in [1..50]];

Crossrefs

Cf. A000032, A000045, A235497, A246972, A246973.

Sequence in context: A040383 A058282 A298208 * A071160 A071153 A209644

Adjacent sequences: A247334 A247335 A247336 * A247338 A247339 A247340

Keyword

nonn,easy,base

Author

Vincenzo Librandi, Sep 14 2014

Status

approved