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A127770
a(n) = A127768(2n+1). A bisection of the row sums of the inverse of number triangle A(n,k) = 1/C(n) if k <= n <= 2k, 0 otherwise, where C(n) = A000108(n).
1
1, 4, 29, 301, 3441, 42019, 534978, 7020706, 94288121, 1289627931, 17902158534, 251577092029, 3572042403354, 51166198378830, 738494266832548, 10729649544155311, 156802065560857737
OFFSET
0,2
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul Barry, Jan 28 2007
STATUS
approved