20382

Appears in sequences

• Bisection (odd part) of Chebyshev sequence with Diophantine property.at n=4A077249
• Combined Diophantine Chebyshev sequences A077249 and A077251.at n=9A077410
• Number of times the n-th prime appears among the decimal digits of 2^(2^n) + 1, the Fermat numbers.at n=25A078671
• Numbers k such that 2*prime(k)+1, 2*prime(k+1)+1, 2*prime(k+2)+3 and 2*prime(k+3)-3 are also consecutive primes.at n=0A103912
• Numbers j such that 24*(j^2) + 25 = k^2.at n=14A106331
• Number of nX2 0..1 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other.at n=10A203632
• Number of n X 2 0..2 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to itself plus one mod 3, with upper left element zero (rock paper and scissors drawn positions).at n=5A231822
• Number of nX6 0..2 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to itself plus one mod 3, with upper left element zero (rock paper and scissors drawn positions).at n=1A231826
• T(n,k)=Number of nXk 0..2 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to itself plus one mod 3, with upper left element zero (rock paper and scissors drawn positions).at n=22A231828
• T(n,k)=Number of nXk 0..2 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to itself plus one mod 3, with upper left element zero (rock paper and scissors drawn positions).at n=26A231828
• Positive even numbers which are neither of the form p + 2^m + 1 nor of the form p + 2^m - 1 with p prime.at n=32A270446
• Number of integer partitions of n whose product is a perfect power.at n=51A320322
• a(n) is the index of the first GF(2)[X] polynomial that has n distinct irreducible factors.at n=6A376932