A243152 - OEIS

A243152

a(n) = the digit that is repeated exactly n times in the string A243151(n)^n.

1, 1, 6, 3, 9, 4, 1, 1, 6, 0, 8, 5, 4, 8, 7, 1, 4, 1, 6, 0, 6, 3, 8, 9, 3, 4, 9, 6, 7, 6, 7, 4, 6, 0, 3, 9, 6, 0, 9, 5, 1, 3, 1, 6, 2, 7, 7, 9, 4, 8, 9, 2, 7, 7, 7, 9, 9, 4, 9, 9, 1, 0, 9, 5, 9, 5, 5, 6, 4, 3, 2, 6, 3, 7, 4, 7, 2, 0, 1, 2, 8, 1, 9, 6, 9, 9, 1, 9, 3, 0

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

In the event of a tie, choose the smaller integer.

LINKS

Table of n, a(n) for n=1..90.

EXAMPLE

A243151(2) = 11. So A243151(2)^2 = 121. Since the digit 1 is the one repeated two times, a(2) = 1.

PROG

(Python)

def c(n):

..for k in range(10**7):

....if k % 10 == 0:

......lst = []

......count = 0

......for i in range(10):

........if str(k**n).count(str(i)) == n:

..........return i

n = 1

while n < 100:

..print(c(n), end=', ')

..n+=1

CROSSREFS

Cf. A243151.

Sequence in context: A158606 A021065 A262041 * A093754 A135935 A263183

Adjacent sequences: A243149 A243150 A243151 * A243153 A243154 A243155

KEYWORD

nonn,base

AUTHOR

Derek Orr, May 31 2014

STATUS

approved