A133890 Binomial(n+10,n) mod 10.

1, 1, 6, 6, 1, 3, 8, 8, 8, 8, 6, 6, 6, 6, 6, 0, 5, 5, 0, 0, 5, 5, 0, 0, 0, 6, 6, 6, 6, 6, 8, 8, 3, 3, 8, 6, 1, 1, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 6, 6, 1, 1, 6, 8, 8, 8, 8, 8, 6, 6, 6, 6, 1, 5, 0, 0, 5, 5, 0, 0, 0, 0, 0, 6, 6, 6, 6, 6, 3, 3, 8, 8, 3, 1, 6, 6, 6, 6, 0, 0, 0, 0, 0, 0, 5, 5, 0, 0, 1, 1, 6, 6, 6

Offset: 0

Author

Hieronymus Fischer, Oct 10 2007

Keywords

• nonn
• easy

Comments

Periodic with length A133900(10)=4*10^2=400.

Links

• Ray Chandler, Table of n, a(n) for n = 0..1000
• Index entries for linear recurrences with constant coefficients, order 231.

Crossrefs

Cf. A000040, A133620-A133625, A133630, A038509, A133634-A133636, A133880, A133900, A133910.

Programs

Mathematica

Table[Mod[Binomial[10+n,n],10],{n,0,120}] (* Harvey P. Dale, Sep 19 2018 *)

PARI

a(n)=binomial(n+10,10)%10 \\ Charles R Greathouse IV, Nov 22 2011

Formula

a(n) = binomial(n+10,10) mod 10.