27973

Appears in sequences

• Super-4 Numbers (4 * n^4 contains substring '4444' in its decimal expansion).at n=29A032744
• Semiprimes in A054552.at n=29A113690
• n+p(n)+p(p(n)) is a square, where p(n) is the n-th prime.at n=12A116011
• Initial term of a series of exactly n consecutive non-Niven (or Harshad) numbers.at n=26A144378
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 0), (0, 1, -1), (0, 1, 1), (1, -1, 1)}.at n=9A148913
• Numerator of Bernoulli(n, -2/5).at n=6A157906
• Numbers m such that numbers m, m + 1, m + 2 and m + 3 have k, 2k, 3k and 4k divisors respectively.at n=17A340157
• Numbers that are the sum of eight fourth powers in exactly ten ways.at n=29A345842
• Numbers k such that k, k+1, k+2, k+3 have 2, 3, 4, 5 prime factors respectively, counted with multiplicity.at n=38A363391