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A025537 (1/s(0) + 1/s(1) + ... + 1/s(n))*lcm{C(0,0), C(1,0), ..., C(n,0)}, where s = A002944, i.e., s(k) = LCM of row k+1 of Pascal's triangle. 0
1, 2, 5, 17, 35, 181, 182, 1278, 2559, 7687, 7688, 84580, 84581, 1099567, 1099582, 1099590, 2199181, 37386095, 37386096, 710335844, 710335865, 710335887, 710335888, 16337725448, 16337725453, 81688627291, 81688627300, 245065881928, 245065881929 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..28.

CROSSREFS

Sequence in context: A075345 A045705 A125822 * A245784 A247068 A028916

Adjacent sequences:  A025534 A025535 A025536 * A025538 A025539 A025540

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 17 15:36 EDT 2018. Contains 313816 sequences. (Running on oeis4.)