30353

Appears in sequences

• Brilliant numbers such that when they are concatenated with their 10's complement, which also must be brilliant, the result is a prime.at n=3A084629
• Numbers k such that 5*10^k + 2*R_k + 5 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=18A103010
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (-1, 1, 0), (0, 0, 1), (1, 0, 0)}.at n=9A149925
• Odd integers n such that 2^n == 2^8 (mod n).at n=4A215611
• Number of ways to write n as an ordered sum of 10 primes (counting 1 as a prime).at n=10A341989
• Record values in A356640.at n=17A356642