32683

Appears in sequences

• Take n points in general position in the plane; draw all the (infinite) straight lines joining them; sequence gives number of connected regions formed.at n=24A055503
• Leading diagonal of array in A100461.at n=15A100462
• Number of reduced words of length n in the Weyl group A_9.at n=11A161457
• Number of reduced words of length n in the Weyl group A_9.at n=34A161457
• Numbers k such that 4^k + 27 is prime.at n=26A262969
• a(1) = 1; a(n+1) = Sum_{d|n, n/d odd} a(d)^(n/d).at n=47A307780
• Expansion of (1/x) * Series_Reversion( x * (1 - x^2 * (1 + x)^2) ).at n=12A389294