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A233548
1, 1, followed by denominators of A000217(n)*A164555(n)/A027642(n).
0
1, 1, 1, 2, 1, 1, 2, 1, 3, 1, 2, 1, 1, 1, 30, 1, 1, 1, 10, 1, 21, 1, 10, 1, 1, 1, 42, 1, 1, 1, 2, 1, 231, 1, 10, 1, 1, 1, 2730, 1, 1, 1, 110, 1, 21, 1, 2, 1, 1, 1, 1326, 1, 11, 1, 10, 1, 57, 1, 10, 1, 1, 1, 30030
OFFSET
-2,4
COMMENTS
See A233316.
MATHEMATICA
b[-2] = b[-1] = 0; b[1] = 1/2; b[n_] := BernoulliB[n]; a[n_] := (n + 1)*(n + 2)/2*b[n] // Denominator; Table[a[n], {n, -2, 60}]
CROSSREFS
Cf. A233316 (numerators).
Sequence in context: A111786 A072811 A296559 * A080027 A341970 A375001
KEYWORD
nonn,frac
AUTHOR
STATUS
approved