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A027508 Second column of A027495. 0
1, 21, 227, 4283, 3303383, 4156965497, 2439821215787, 25768363425203859, 2832420937806122764581, 4560420339293289548844701, 1405739820979794860218217874663237, 16339745488551090702175554269302914589235, 511682012237090112121527245846398145676326299 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,2
LINKS
FORMULA
Numerators of sequence a[ 2, n ] in (a[ i, j ])^2 where a[ i, j ] = S(i, j)/BellNumber(i) if j<=i, 0 if j>i.
CROSSREFS
Sequence in context: A219140 A231513 A332908 * A221037 A221500 A161518
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Sean A. Irvine, Nov 06 2019
STATUS
approved

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Last modified April 19 10:38 EDT 2024. Contains 371791 sequences. (Running on oeis4.)