19614

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 20.at n=13A031698
• a(n) = concatenation of n^2 and n.at n=13A055436
• a(n) = 100*n^2 + n.at n=13A055438
• a(n) = 400*n^2 + 2*n.at n=6A158312
• a(n) = 196*n^2 + 14.at n=10A158555
• Number of (n+2) X 6 binary arrays with consecutive windows of three bits considered as a binary number nondecreasing in every row and column.at n=4A202457
• Number of (n+2) X 7 binary arrays with consecutive windows of three bits considered as a binary number nondecreasing in every row and column.at n=3A202458
• T(n,k)=Number of (n+2)X(k+2) binary arrays with consecutive windows of three bits considered as a binary number nondecreasing in every row and column.at n=31A202461
• T(n,k)=Number of (n+2)X(k+2) binary arrays with consecutive windows of three bits considered as a binary number nondecreasing in every row and column.at n=32A202461
• a(n) is the smallest number k such that the difference between the next prime greater than k and k equals n.at n=46A309877
• The smallest number in base n such that two digits (and no fewer) need to be changed to get a prime.at n=40A370531
• Number of permutations (p(1),p(2),...,p(n)) of (1,2,...,n) such that p(i)-i is in {-2,4,5} for all i=1,...,n.at n=65A378005