50160

Appears in sequences

• Numbers k whose decimal representation, read as a base-19 value and divided by k, yields an integer.at n=20A032569
• Numbers whose base-4 representation contains exactly four 0's and four 3's.at n=9A045085
• E.g.f. (1-x)^2/(1-4x+x^2).at n=5A052606
• Numbers that can be expressed as the difference of the squares of primes in exactly eight distinct ways.at n=7A092004
• LeastCommonMultiple({k+prime(k): 1<=k<=n}).at n=5A093571
• LeastCommonMultiple({k+prime(k): 1<=k<=n}).at n=6A093571
• When the n-th term of this sequence is added to or subtracted from the square of the n-th prime of the form 4k + 1 (i.e., A002144(n)), the result in both cases is a square.at n=23A114200
• Denominators of Apéry-style convergents to 4/11 log 2.at n=3A114498
• Define an array by d(m, 0) = 1, d(m, 1) = m; d(m, k) = (m - k + 1) d(m+1, k-1) - (k-1) (m+1) d(m+2, k-2). Sequence gives d(n,3).at n=38A126935
• a(n) = 64*n^2 - 16.at n=27A157913
• a(n) = 196*n^2 - n.at n=15A158003
• a(n) = 784*n^2 - 2*n.at n=7A158398
• a(n) = 256*n^2 - 16.at n=13A158562
• Numbers with prime factorization p*q*r*s*t^4 (where p, q, r, s, t are distinct primes).at n=9A190110
• Common differences in triples of squares in arithmetic progression, that are not a multiples of other triples in (A198384, A198385, A198386).at n=40A198438
• Number of ways of writing n as the sum of 11 triangular numbers.at n=14A226255
• Integer areas A of integer-sided triangles such that the length of the circumradius is a prime number.at n=28A256629
• a(n) = 2*n*(16*n - 13).at n=40A263228
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 627", based on the 5-celled von Neumann neighborhood.at n=35A273276
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 347", based on the 5-celled von Neumann neighborhood.at n=30A281279