39217

Properties

Appears in sequences

• Molien series of 4-dimensional representation of u.g.g.r. #9.at n=22A013977
• Prime number spiral (clockwise, South spoke).at n=32A054566
• Numbers which are primes and which remain prime for three successive applications of incrementing each digit by 2 with carries ignored.at n=31A088787
• Triangle read by rows: row n contains n terms of the arithmetic progression having first term 1 and common difference 2[n^(n-1)-1]/(n-1).at n=22A111568
• Primes of the form 1+2*n+3*n^2.at n=15A122430
• Primes of the form k^2 + 13.at n=32A138375
• Primes p such that 2*p + 1 is abundant.at n=44A267476
• Permutation of natural numbers: a(0) = 1, a(1) = 2, a(2n) = A273669(a(n)), a(2n+1) = A273664(a(n)).at n=65A275716
• Triangle read by rows, giving the arithmetic progressions of prime-indexed primes in A278735.at n=13A279021
• Primes that can be generated by the concatenation in base 7, in ascending order, of two consecutive integers read in base 10.at n=32A287308
• a(n) = n^2 + 2329*n + 1697.at n=16A301985
• Greatest prime factor of n^3+2.at n=48A321069
• Prime numbersat n=4129