23482

Appears in sequences

• a(n) = a(n-2) + a(n-3), with a(0) = 0, a(1) = 1, a(2) = 4.at n=35A007309
• Numbers k such that 1000k+1, 1000k+3, 1000k+7, 1000k+9 are all primes.at n=10A064962
• Expansion of (1-4x)/(1-x^2+x^3).at n=34A117379
• Sum of the numbers already killed in the first jump of a Sieve of Eratosthenes table.at n=33A179628
• Number of integer partitions of n such that the maximum is greater than or equal to twice the median.at n=37A361859