23340

Appears in sequences

• Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BIK = Bikitaite Li2[Al2Si4O12].2H2O starting from a T2 atom.at n=13A019077
• Numerators of continued fraction convergents to sqrt(926).at n=6A042790
• Numbers which are the sum of their proper divisors containing the digit 8.at n=15A059467
• The (12^n)-th composite number.at n=4A065527
• Matrix inverse of triangle A104559, read by rows.at n=36A104560
• Column 0 of triangle A104560.at n=8A104561
• Integers that are the arithmetic mean of 1000 consecutive primes.at n=3A123078
• Number of 8-step one space at a time bishop's tours on an n X n board summed over all starting positions.at n=7A187161
• Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,3,0,4 for x=0,1,2,3,4.at n=9A196690
• Number of (n+1) X 2 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to two.at n=5A205829
• Number of (n+1) X 7 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to two.at n=0A205834
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two.at n=15A205836
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two.at n=20A205836
• Smallest number k such that k*n +/- 1, k*n^2 +/- 1, and k*n^3 +/- 1 are three sets of twin primes. a(n) = 0 if no such number exists.at n=21A239021
• Numbers k such that Bernoulli number B_{k} has denominator 56786730.at n=3A295598