19166

Appears in sequences

• [ Sum{(sqrt(j+1)-sqrt(i+1))^3} ], 1 <= i < j <= n.at n=47A025223
• Value of 3^x - 2^x - 5 for the solutions of 3^x - 2^x == 5 (mod 7).at n=3A030531
• a(n) = nextprime(3^n) - nextprime(2^n).at n=9A037128
• Triangle T(n,k) of number of digraphs with a quasi-source on n unlabeled nodes and with k arcs, k = 0..n*(n-1).at n=54A057279
• Even numbers n such that 37^2 (the square of the first irregular prime) divides the numerator of Bernoulli(n).at n=35A090789
• Least positive k such that k * [RSA-200]^n - 1 is prime, where RSA-200 is the 200 decimal digit RSA challenge number A391940(15).at n=38A108375
• a(n) = 14*n^2.at n=37A144555
• Numbers n such that d(n-2) = d(n) = d(n+2) = 12 where d(n)=A000005(n).at n=15A190645
• Numbers n such that 4n+3 is a palindromic prime.at n=44A193419
• Square array A(n,k), n>=0, k>=0, read by antidiagonals: A(n,k) is the number of partitions of n^k into powers of k.at n=58A196879
• Number of partitions of n^7 into powers of 7.at n=3A196885
• Number of partitions of 3^n into powers of n.at n=7A196890
• Ordered differences of numbers 3^j-2^j, as in A001047.at n=29A205105
• s(k)-s(j), where (s(k),s(j)) is the least pair of numbers given by s(j)=3^j-2^j which n divides their difference.at n=36A205110
• Number of nX7 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX7 array.at n=2A219626
• T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nXk array.at n=38A219627
• Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 3Xn array.at n=6A219629
• Number of solid standard Young tableaux of n cells and height seven.at n=4A273587
• Expansion of (1/x) * Series_Reversion( x * (1-x) / (1+x^3)^2 ).at n=9A369266
• Sorted positions of first appearances in A057820, the sequence of first differences of prime-powers.at n=47A376340