33669
domain: N
Appears in sequences
- a(n) = ceiling(x(n)), where x(n) = 3*x(n-1)/2 and x(1) = 1.at n=24A117590
- a(n) = 1 + (144 + (50 + (35 + (10 + n)*n)*n)*n)*n/120.at n=19A145127
- a(n) = Sum_{k=1..n} gcd(k, n)^3.at n=29A343497
- Triangle read by rows. The reduced triangle of the partition triangle of reducible permutations (A356264). T(n, k) for n >= 1 and 0 <= k < n.at n=40A356265
- Numbers k such that the sums (with multiplicity) of prime factors of k and k+1 are both squares.at n=32A359445