39979

Properties

Appears in sequences

• a(n) = a(n-1) + a(n-2) + 1, with a(0)=3, a(1)=12.at n=18A022411
• Number of n-digit numbers with nonzero multiplicative digital root 4.at n=5A051815
• Primes p whose period of reciprocal equals (p-1)/9.at n=34A056214
• Primes with digit sum = 37.at n=2A106771
• Primes p such that p's set of distinct digits is {3,7,9}.at n=35A108385
• Primes p such that the multiplicative order of 2 modulo p is (p-1)/9.at n=27A152309
• Triangle T(n,k) by rows: number of ways k dominoes can be placed on an n X n chessboard, k>=0.at n=23A242861
• Number of 4-matchings of the n X n grid graph.at n=5A243215
• Prime p such that p^5 + p^3 + p - 4 and p^5 + p^3 + p + 4 are primes.at n=33A243900
• Prime numbersat n=4201