181540
domain: N
Appears in sequences
- Base 5 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,3,0.at n=7A037738
- T(n,n-3), array T as in A047140.at n=9A047145
- Limit of reversed rows of triangle A126347, in which row sums equal Bell numbers (A000110).at n=30A126348
- a(1) = 1; a(n+1) = round(sqrt(3)*a(n)).at n=22A134009
- Expansion of Product_{k>=0} ((1+x^(2*k+1))/(1-x^(2*k+1)))^5.at n=11A261648