533868
domain: N
Appears in sequences
- Number of (n+1)X(2+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and nonincreasing columnwise.at n=3A235418
- T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and nonincreasing columnwise.at n=13A235421
- Number of (4+1)X(n+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and nonincreasing columnwise.at n=1A235424
- The smallest number such that n or more positive numbers k exist such that a(n) - k = sopfr(a(n) + k), where sopfr(m) is the sum of the primes dividing m, with repetition.at n=13A369355
- The smallest number such that n or more positive numbers k exist such that a(n) - k = sopfr(a(n) + k), where sopfr(m) is the sum of the primes dividing m, with repetition.at n=14A369355
- The smallest number such that n or more positive numbers k exist such that a(n) - k = sopfr(a(n) + k), where sopfr(m) is the sum of the primes dividing m, with repetition.at n=15A369355
- The smallest number such that n or more positive numbers k exist such that a(n) - k = sopfr(a(n) + k), where sopfr(m) is the sum of the primes dividing m, with repetition.at n=16A369355