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A092483
a(n) is the floor of the average of the 1st moment of all previous entries.
0
1, 1, 1, 2, 3, 5, 9, 17, 32, 60, 114, 218, 418, 803, 1549, 2995, 5802, 11263, 21900, 42648, 83163, 162366, 317352, 620906, 1215941, 2383244, 4674825, 9176508, 18025284, 35429006, 69677045, 137106444, 269928311, 531676976, 1047716394
OFFSET
1,4
FORMULA
a(n)=floor(sum(j=1, n-1, j*a(j))/(n-1))
EXAMPLE
The sequence opens 1,1,1,2,3,5. a(7) = floor((1*1 + 2*1 + 3*1 + 4*2 + 5*3 + 6*5)/6) = floor((1 + 2 + 3 + 8 + 15 + 30)/6) = floor(59/6) = 9.
PROG
(PARI) for(i=2, 50, v[i]=floor(sum(j=1, i-1, j*v[j])/(i-1)))
CROSSREFS
Sequence in context: A351360 A080889 A049858 * A351361 A324767 A005257
KEYWORD
nonn
AUTHOR
Jon Perry, Apr 04 2004
STATUS
approved