33912
domain: N
Appears in sequences
- Denominators of continued fraction convergents to sqrt(541).at n=11A042035
- Numbers n such that the sum of the prime factors of n equals the product of the digits of n.at n=36A067173
- a(1) = 1, then {sum of terms of the n-th group in A075631}/{sum of (n-1)-th group}.at n=7A075632
- 30*a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 11.at n=17A090890
- Number of permutations of 1..n with all sums of 2 through 4 adjacent terms squared respectively unique.at n=7A147738
- Number of permutations of 1..n with all sums of 2 through 5 adjacent terms squared respectively unique.at n=7A147739
- Number of permutations of 1..n with all sums of 2 through 6 adjacent terms squared respectively unique.at n=7A147740
- Number of -1..1 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, four or five distinct values for every i,j,k<=n.at n=13A211526
- Numbers k such that (13*10^k - 37)/3 is prime.at n=21A291178
- E.g.f. A(x) satisfies A(x) = 1 + log(1+x) * A(log(1+x)).at n=8A354728
- G.f. A(x) satisfies: 3*x*A(x) = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x)^n.at n=5A355363