50527

Properties

Appears in sequences

• Number of partitions of n into parts not of the form 25k, 25k+4 or 25k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 11 are greater than 1.at n=45A036003
• a(n) = Sum_{k=0..floor(n/2)} binomial(n-k, floor((n-k)/2)).at n=17A129384
• Numbers k such that k and k^2 use only the digits 0, 2, 5, 7 and 9.at n=43A136917
• Primes that are anagrams of Fibonacci numbers.at n=32A162390
• Triangle read by rows: row n gives the n primes corresponding to A187825.at n=34A195258
• Smallest beastly prime in base n: smallest prime p with a base-n expansion containing the substring 666.at n=13A286342
• a(1)=1. For n > 1, a(n) is the n-th positive integer after a(n-1) which cannot be written as a sum of distinct preceding terms in the sequence.at n=18A343017
• Primes having only {0, 2, 5, 7} as digits.at n=41A386049
• Prime numbersat n=5182