23238

Appears in sequences

• Expansion of 1 / ((1-2*x)*(1-4*x+x^2)).at n=7A216263
• Number of length n 1..(2+2) arrays with no leading partial sum equal to a prime.at n=10A254533
• Numbers k such that 4*10^k + 39 is prime.at n=19A294918
• a(n) = Sum_{k=0..floor(n/6)} (-1)^k*binomial(n,6*k).at n=19A307040
• Number of n-step self-avoiding walks on a 3D cubic lattice whose end-to-end distance is an integer.at n=8A359741
• Expansion of e.g.f. 1/(1 - 3 * x * (exp(x) - 1)).at n=6A367881
• Sorted positions of first appearances in the run-lengths (differing by 0) of the antirun-lengths (differing by > 2) of the odd primes.at n=4A373826
• Position of first appearance of n in the run-lengths (differing by 0) of the antirun-lengths (differing by > 2) of the odd primes.at n=5A373827