19798
domain: N
Appears in sequences
- Numbers k such that 111*2^k-1 is prime.at n=40A050581
- Number of partitions of n such that the least part occurs with even multiplicity.at n=40A096374
- Indices of primes occurring in A107798.at n=29A107799
- a(n) = n*(n^2 + 3*n + 5)/3.at n=38A145069
- Numbers m such that the sum of the first k odd primes = m-th odd prime.at n=21A179321
- a(n) = n*(14*n - 11).at n=38A195021
- a(n) = (n-2)*(14*n-39) for n > 2, otherwise a(n) = n.at n=40A195030
- Number of (n+1) X (1+1) 0..1 arrays with the difference of the upper and lower median value of each 2 X 2 subblock in lexicographically nondecreasing order rowwise and columnwise.at n=7A235566
- T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise.at n=28A235573
- T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise.at n=35A235573
- T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.at n=28A235962
- T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.at n=35A235962
- Number of partitions of n into 8 distinct and relatively prime parts.at n=46A340719