26892

Appears in sequences

• Powers of fifth root of 17 rounded to nearest integer.at n=18A018163
• Powers of fifth root of 17 rounded up.at n=18A018164
• Conjectured formula for irreducible 6-fold Euler sums of weight 2n+16.at n=32A019459
• Denominators of continued fraction convergents to sqrt(105).at n=5A041189
• Product of prime(n+1)-1 and prime(n)-1.at n=37A083553
• Total Wiener index of (rooted?) trees on n nodes (see Wagner for precise definition).at n=8A122682
• a(n) = 16*n^2 - 4.at n=40A158443
• Average of twin prime pairs with multiple and strictly distinct powers.at n=31A177426
• a(0)=1, a(1)=2; thereafter a(n) = f(n-1) + f(n-2) where f() = A164387().at n=17A185265
• Numbers n such that n^32+1 and (n+2)^32+1 are both prime.at n=13A217992
• Number of partitions of n in which any two parts differ by at most 7.at n=48A218509
• Numbers k such that k is the average of four consecutive primes k-11, k-1, k+1 and k+11.at n=23A259025
• Average of twin prime pairs that is a product of two averages of twin prime pairs.at n=42A307758
• Numbers m such that A338038(m) = A338038(A004086(m)) where A004086(i) is i read backwards and A338038(i) is the sum of the primes and exponents in the prime factorization of i ignoring 1-exponents; palindromes and multiples of 10 are excluded.at n=41A338039
• Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k torus up to horizontal reflections by two tiles that are both fixed under horizontal reflection.at n=32A368305
• Terms of A319928 that are congruent to 4 modulo 8: Numbers k == 4 (mod 8) such that there is no other m such that (Z/mZ)* is isomorphic to (Z/kZ)*, where (Z/kZ)* is the multiplicative group of integers modulo k.at n=25A372755