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A104639 Number of even digits in n^3. 6
0, 1, 1, 2, 1, 2, 1, 1, 1, 3, 0, 2, 1, 3, 0, 3, 1, 2, 2, 4, 2, 4, 2, 3, 2, 1, 2, 2, 3, 4, 1, 3, 0, 2, 3, 4, 2, 3, 0, 5, 3, 4, 1, 3, 1, 1, 3, 2, 2, 4, 2, 5, 3, 3, 2, 2, 1, 1, 2, 5, 4, 4, 4, 5, 4, 4, 3, 3, 3, 4, 0, 3, 2, 5, 3, 3, 2, 3, 2, 4, 2, 2, 1, 3, 3, 4, 3, 4, 3, 4, 0, 4, 3, 4, 1, 4, 2, 2, 2, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..100.

FORMULA

a(n) = A196563(n^3). - Michel Marcus, Oct 05 2013

PROG

(PARI) a(n) = my(d = digits(n^3)); sum(i=1, #d, 1 - (d[i] % 2)); \\ Michel Marcus, Oct 05 2013

CROSSREFS

Cf. A104640.

Sequence in context: A205649 A176510 A061342 * A161223 A145672 A175024

Adjacent sequences:  A104636 A104637 A104638 * A104640 A104641 A104642

KEYWORD

easy,nonn,base

AUTHOR

Zak Seidov, Mar 18 2005

STATUS

approved

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Last modified April 23 13:01 EDT 2014. Contains 240925 sequences.