24833

Appears in sequences

• Let A(n) = #{(i,j): i^2 + j^2 <= n}, V(n) = Pi*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives A(A000099(n)).at n=33A000323
• Numbers n such that n and prime(n) end with the same three digits.at n=19A067841
• Numbers k such that the digit sum of 167^k is divisible by k.at n=39A175552
• a(n) = Sum_{k=0..n} C(n,k)*sigma(n+k) for n>=1.at n=9A181411
• Central coefficients of triangle A182013.at n=6A182016
• Numbers k such that there is 1 prime between 100*k and 100*k + 99.at n=30A186393
• Numbers k with same last four digits as p, prime(k)=p.at n=4A232189
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 457", based on the 5-celled von Neumann neighborhood.at n=33A272282
• Solution of the complementary equation a(n) = 8*a(n-3) + b(n-2), where a(0) = 1, a(1) = 3, a(2) = 5, b(0) = 2, and (a(n)) and (b(n)) are increasing complementary sequences.at n=14A295065
• Numbers k such that the digits of k are a subsequence of the digits of prime(k).at n=28A362060
• Number of partitions of n with exactly four part sizes.at n=37A365630