A022869 - OEIS

A022869

a(n) = [ a(n-1)/a(1) + a(n-2)/a(2) + ... + a(1)/a(n-1) ], for n >= 3.

2, 2, 2, 3, 4, 5, 7, 10, 13, 18, 25, 35, 48, 67, 93, 129, 179, 249, 346, 481, 668, 928, 1290, 1792, 2491, 3462, 4811, 6686, 9292, 12913, 17946, 24940, 34660, 48169, 66942, 93032, 129291, 179681, 249711, 347034, 482289, 670259, 931489

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..43.

FORMULA

It seems that a(n) = floor(A*B^n) + 0 or + 1 where A=0.665223258777... and B=1.3897449962460091643408... - Benoit Cloitre, Oct 24 2003

CROSSREFS

Sequence in context: A099388 A193941 A239291 * A359319 A357384 A022865

Adjacent sequences: A022866 A022867 A022868 * A022870 A022871 A022872

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved