139195

Appears in sequences

• Sequence A001033 gives the numbers n such that the sum of the squares of n consecutive odd numbers x^2 + (x+2)^2 + ... +(x+2n-2)^2 = k^2 for some integer k. For each n, this sequence gives the least value of k.at n=8A056132
• Expansion of (1 + x - 8*x^2 + x^3 + x^4) / ( (1 - x)*(1 - 10*x^2 + x^4) ).at n=11A181442
• Number of Fermat pseudoprimes to base 2 between 2^n and 2^(n+1) that are not Carmichael numbers.at n=44A252943
• a(n) is the smallest m for which binomial(m, 6) has exactly n distinct prime factors.at n=18A321852