25842
domain: N
Appears in sequences
- Coefficients of replicable function number "32b".at n=41A058632
- Numbers n for which there are exactly ten k such that n = k + reverse(k).at n=31A072434
- Number of permutations of length n which avoid the patterns 4231 and 3124.at n=9A165535
- The number of bidirectional ballot sequences of length n, i.e., the number of 0-1 sequences of length n such that every prefix and every suffix has more 1's than 0's.at n=20A167510
- Sequence generated from Lim:_{n..inf.} M^n, M = an infinite lower triangular matrix with (1,3,3,3,...) in every column, shifted down twice.at n=43A171370
- Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and -2<=w+x+y<=2.at n=42A211616
- Least k such that k*30^n-1 , k*30^n+1, and 2*k*30^n-1 are prime; that is, twin primes and a Sophie Germain prime.at n=42A212956
- Number of partitions of n+6 with largest inscribed rectangle having area <= n.at n=32A218627
- Number of edge covers in the n-wheel graph.at n=8A297047
- Triangle read by rows: T(n,k) is the number of embeddings on the sphere of connected simple planar graphs with n nodes and k faces, n >= 1, k=1..max(1,2*n-4).at n=47A384963
- Number of integer partitions of n such that for some part k the multiplicity of k exceeds k.at n=39A387578