68092
domain: N
Appears in sequences
- a(n) = 81n^2 - n.at n=28A157953
- a(n) = 841*n^2 - 29.at n=8A158667
- Collatz (or 3x+1) trajectory starting at 10087.at n=5A161022
- G.f. A(x) satisfies: Sum_{n>=0} A(x)^((n-1)^2) * x^n = Sum_{n>=0} ((1+x)^(n-1) + 1)^n * x^n.at n=9A326558
- Number of integer partitions of n whose length is not a semi-sum of the parts.at n=47A367398