A077750 - OEIS

A077750

Least significant digit of A077749(n).

0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0, 2, 6, 4, 0

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..104.

Index entries for linear recurrences with constant coefficients, signature (1,-1,1).

FORMULA

a(n) = A077749(n) - 10*floor(A077749(n)/10).

a(4n-3) = 0, a(4n-2) = 2, a(4n-1) = 6, a(4n) = 4, n > 0. - Sascha Kurz, Jan 04 2003

a(n) = 3-3*cos(n*Pi/2)-sin(n*Pi/2). - Wesley Ivan Hurt, May 07 2021

a(n) = A010879(A077749(n)). - Michel Marcus, Aug 22 2024

From Stefano Spezia, Aug 26 2024: (Start)