25656

Appears in sequences

• Expansion of (theta_3(z)*theta_3(11z) + theta_2(z)*theta_2(11z))^4.at n=22A028612
• Numbers n such that 179*2^n-1 is prime.at n=5A050841
• Numbers n such that 65537 * 2^n - 1 is prime.at n=24A109993
• Numbers k such that 3^k + 16 is prime.at n=32A205647
• Consider the prime factors, with multiplicity, in ascending order, of a composite number not ending in 0. Take their sum and repeat the process deleting the minimum number and adding the previous sum. The sequence lists the numbers that after some iterations reach a sum equal to the reverse of themselves.at n=9A247013
• Numbers t which satisfy the equation: t mod k = floor((t - k)/k) mod k (1 <= k <= t) only for k = 1 and t.at n=27A375007