50253
domain: N
Appears in sequences
- Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^21 in powers of x.at n=6A047646
- Fourth row of Pascal-(1,3,1) array A081578.at n=17A081586
- O.g.f.: Sum_{n>=0} n! * x^n / Product_{k=1..n} (1 - n*k*x).at n=6A229234
- Numbers k such that 8*10^k - 99 is prime.at n=25A280016
- Number of series-reduced rooted identity trees whose leaves are constant integer partitions whose multiset union is an integer partition of n.at n=11A320178
- a(n) = (4*n^3 - 6*n^2 + 14*n + 3)/3.at n=34A321124