

A084011


Digit reversal of 11*n, divided by 11.


1



1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 11, 21, 31, 41, 51, 61, 71, 81, 82, 2, 12, 22, 32, 42, 52, 62, 72, 73, 83, 3, 13, 23, 33, 43, 53, 63, 64, 74, 84, 4, 14, 24, 34, 44, 54, 55, 65, 75, 85, 5, 15, 25, 35, 45, 46, 56, 66, 76, 86, 6, 16, 26, 36, 37, 47, 57, 67, 77, 87, 7, 17, 27, 28, 38, 48, 58
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OFFSET

1,2


LINKS

Indranil Ghosh, Table of n, a(n) for n = 1..9999


FORMULA

a(n) = A004086(11*n)/11.  Indranil Ghosh, Jan 10 2017


EXAMPLE

For n = 13, A004086(13*11)/11 = 341/11 = 31. So, a(13) = 31.  Indranil Ghosh, Jan 10 2017


MATHEMATICA

a[n_] := Module[{aux = IntegerDigits[11*n]}, Sum[aux[[i]]*10^(i  1), {i, 1, Length[aux]}]/11]; Table[a[n], {n, 100}] (* José María Grau Ribas, Feb 16 2010 *)


PROG

(Python)
def A084011(n):
return int(str(11*n)[::1])/11 # Indranil Ghosh, Jan 10 2017


CROSSREFS

Cf. A004086, A007091.
Cf. A039691 (n such that a(n) = A004086(n)).
Sequence in context: A343750 A107603 A161594 * A345110 A004086 A121760
Adjacent sequences: A084008 A084009 A084010 * A084012 A084013 A084014


KEYWORD

base,nonn


AUTHOR

Amarnath Murthy, May 23 2003


STATUS

approved



