A022859 a(n) = [ a(n-1)/a(1) + a(n-3)/a(3) + a(n-5)/a(5) + ... ], for n >= 3.

1, 1, 1, 2, 3, 4, 6, 9, 13, 20, 30, 45, 68, 103, 156, 236, 358, 542, 821, 1245, 1887, 2859, 4333, 6568, 9954, 15086, 22865, 34655, 52524, 79608, 120657, 182872, 277169, 420089, 636704, 965015, 1462617, 2216803, 3359879, 5092372

Offset

1,4

Links

Robert Israel, Table of n, a(n) for n = 1..5000

Maple

A[1]:= 1: A[2]:= 1:
for n from 3 to 100 do
  A[n]:= floor(add(A[n-i]/A[i], i=1..n-1, 2));
od:
seq(A[i], i=1..100); # Robert Israel, Aug 06 2019

Crossrefs

Sequence in context: A172161 A117791 A022860 * A352039 A318728 A220126

Adjacent sequences: A022856 A022857 A022858 * A022860 A022861 A022862

Keyword

nonn

Author

Clark Kimberling

Status

approved