22888

Appears in sequences

• Four-fold exponential convolution of primes with themselves.at n=4A014352
• Sort-then-add sequence: a(n+1) = a(n) + sort(a(n)).at n=18A033860
• Sort then Add, a(1)=25.at n=14A033902
• Sort then Add, a(1)=32.at n=13A033907
• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={0,1,4}.at n=43A079956
• Diagonal sums of a matrix associated to the inverse of a Catalan scaled binomial matrix.at n=10A098511
• Number of alternating separable permutations.at n=11A121703
• G.f. satisfies: A(x) = Product_{n>=0} (1 + x*(x+x^2)^n)^2/(1 - x*(x+x^2)^n)^2.at n=10A192626
• Numbers k for which the digital sum of k contains the same distinct digits as k itself.at n=34A249515
• Numbers with digits 2 and 8 only.at n=37A284922
• Number of (undirected) paths on the 2n-crossed prism graph.at n=3A288714
• a(n) = n! * [x^n] (Sum_{k=0..n} prime(k+1)*x^k/k!)^n.at n=4A300631
• Triangle read by rows: T(n,k) (n>=2, 2<=k<=n) = number of figure 8's having 2n edges in one loop and 2k edges in the other and which are weakly embeddable in the square lattice.at n=13A323852
• a(n) is the smallest integer whose orbit length is n under iteration of the map r -> A061602(r).at n=56A343269