18177
domain: N
Appears in sequences
- Convolution of primes with themselves.at n=22A014342
- Concatenations C1 and C2 and C3 are all prime (see the comment lines).at n=8A034817
- Number of partitions satisfying cn(2,5) + cn(3,5) <= cn(0,5) + cn(1,5) and cn(2,5) + cn(3,5) <= cn(0,5) + cn(4,5).at n=42A039865
- Index of the first occurrence of prime(n) in A092938.at n=47A092939
- Fibonacci sequence with first two terms 11 and 23.at n=15A097657
- Triangle read by rows: T(n,k) = 2 * A011971(n,k) - 1.at n=40A136791
- Triangle read by rows: T(n,k) (1 <= k <= n) = number of irreducible coverings by edges of the complete bipartite graph K_{n,k}.at n=38A210654
- Expansion of Sum_{n>=1} ((n-1) * q^(n*(n+1)/2) / Product_{k=1..n} (1 - q^k)).at n=51A218074
- Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X 2 array.at n=24A219846
- Number of (2+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.at n=24A250757
- Number of ways to write n as an ordered sum of 6 prime power palindromes (A084092).at n=26A282845
- Expansion of Product_{k>=1} (1 + x^k)^(k^2*(k+1)/2).at n=9A294842
- Number of joining pairs of integer partitions of n.at n=26A318915
- Total number of parts coprime to n in the partitions of n into 7 parts.at n=47A363325
- E.g.f. satisfies A(x) = 1/(1 - A(x) * (exp(x) - 1))^3.at n=4A377453
- Consecutive states of the linear congruential pseudo-random number generator 171*s mod 30269 when started at s=1.at n=7A385031