30212

Appears in sequences

• Number of partitions satisfying (cn(1,5) <= cn(2,5) and cn(1,5) <= cn(3,5) and cn(4,5) <= cn(2,5) and cn(4,5) <= cn(3,5)).at n=50A036803
• a(n) = n * [1 + sum(k=1 to n) prime(k)].at n=26A083725
• Numbers k such that there is 1 prime between 100*k and 100*k + 99.at n=44A186393
• Sum of binomial numbers A000332(k+3), with k in the reduced residue system modulo n.at n=23A192000
• Number of binary strings of length n that avoid the pattern x x^R x (x^R is the reversal of x).at n=33A261204
• Number of separable partitions of n in which the number of distinct (repeatable) parts <= 5.at n=42A325714
• Numbers whose k digits can be permuted into a new k-digit number according to rules explained in the Comments section.at n=9A330418
• G.f. satisfies A(x) = 1 + x^3*A(x)^2*(1 + x*A(x)).at n=23A365723
• a(n) = Sum_{k=0..floor(n/3)} binomial(n,k) * binomial(2*k,n-3*k).at n=14A389125