30356

Appears in sequences

• Expansion of (1-x)/(1 - x - 4*x^2).at n=12A052923
• a(0)=1, a(1)=4, a(n)=9*a(n-1)-16*a(n-2) for n>1.at n=6A165311
• Numbers k such that 12*10^k - 7 is prime.at n=23A295032
• G.f.: Sum_{n>=0} (x^(2*n-1) + 1)^n * x^n / (1 + x^(2*n+1))^(n+1), an even function.at n=60A326602
• Numbers that are the sum of six fourth powers in five or more ways.at n=18A345562
• Numbers that are the sum of six fourth powers in exactly five ways.at n=17A345817
• Expansion of g.f. A(x) satisfying A(x)^3 = Sum_{n=-oo..+oo} (-x)^n * (A(x)^4 + x^(n-1))^(n+1).at n=5A363136
• Triangle read by rows: T(n,k) = number of j-covers of [n] with j<=k, k=1..2^n-1.at n=20A369950
• Consecutive internal states of the linear congruential pseudo-random number generator (171*s + 11213) mod 53125 when started at 1.at n=35A385039