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A043296 Sum of digits of denominator of Bernoulli number B(2n). 2
6, 3, 6, 3, 12, 12, 6, 6, 24, 6, 12, 12, 6, 15, 12, 6, 6, 30, 6, 12, 15, 15, 12, 15, 12, 15, 24, 15, 12, 42, 6, 6, 21, 3, 24, 21, 6, 3, 15, 6, 21, 15, 6, 12, 21, 6, 6, 24, 6, 12, 15, 15, 12, 30, 15, 24, 6, 15, 6, 39, 6, 3, 42, 6, 24, 24, 6, 6, 30, 33, 6, 42, 6, 15, 21, 3, 12, 42, 6, 6 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

Denominator(B(2*9))=798 and 7+9+8=24 hence a(9)=24

CROSSREFS

Cf. A043295.

Sequence in context: A194625 A165065 A069938 * A199186 A176715 A137245

Adjacent sequences:  A043293 A043294 A043295 * A043297 A043298 A043299

KEYWORD

base,easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 24 2002

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Last modified February 14 23:04 EST 2012. Contains 205686 sequences.