80897

Properties

Appears in sequences

• Primes of the form 512*k+1.at n=30A076339
• Non-palindromic primes which on subtracting their reversal give perfect squares.at n=21A080177
• Expansion of g.f.: exp( Sum_{n>=1} sigma(5*n)*x^n/n ).at n=10A182821
• Number of (n+3) X 10 0..2 matrices with each 4 X 4 subblock idempotent.at n=14A224727
• Start of a record-breaking run of consecutive arithmetic numbers.at n=11A234801
• Prime factors of generalized Fermat numbers of the form 6^(2^m) + 1 with m >= 0.at n=10A273947
• Prime numbersat n=7916