A201773 Concatenation of the decimal digits of Fibonacci(n) and the Fibonacci(n)-th digit of Pi.

0, 13, 13, 21, 34, 55, 86, 139, 216, 342, 550, 898, 1445, 2337, 3774, 6107, 9879, 15973, 25840, 41818, 67653, 109461, 177118, 286576, 463684, 750255, 1213933, 1964184, 3178110, 5142292, 8320401, 13462694, 21783096, 35245782, 57028879

Offset

0,2

Links

Table of n, a(n) for n=0..34.

r/Math: Unique Sequence

Example

a(6) = 86 is the concatenation of A000045(6)=8 and A000796(8) = 6.

Maple

Digits := 4200 ;
A000796 := proc(n)
    floor(Pi*10^(n-1)) ;
    % mod 10 ;
end proc:
A201773 := proc(n)
    f := combinat[fibonacci](n) ;
    digcat2(f, A000796(f)) ;
end proc:
seq(A201773(n), n=0..18) ; # R. J. Mathar, Dec 05 2011

Crossrefs

Sequence in context: A290854 A254928 A294657 * A072519 A060362 A003888

Adjacent sequences: A201770 A201771 A201772 * A201774 A201775 A201776

Keyword

base,less,nonn,easy

Author

Joseph Tingsanchali, Dec 04 2011

Extensions

More terms from Sean A. Irvine, Apr 09 2013

Status

approved