77976

Appears in sequences

• Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 2,3,0.at n=5A037629
• The number k(GL(n,q)) of conjugacy classes in GL(n,q), q=5.at n=7A049315
• Numbers whose square can be expressed as the sum of two positive cubes in more than one way.at n=0A051302
• Prime power perfect numbers: If n = Product p_i^r_i let PPsigma(n) = Product {Sum p_i^s_i, 2<=s_i<=r_i, s_i is prime}; sequence gives numbers k such that PPsigma(k) = 2*k.at n=6A096290
• Series expansion for radius of gyration on honeycomb.at n=6A121344
• p(p(2^n)-p(n+1)+p(n*2)-p(n^2))-1, where p(n)=n-th prime.at n=9A141084
• Numbers n such that n^2 can be expressed as the sum of 2 positive cubes in exactly 2 different ways.at n=0A145553
• Numbers with prime factorization p^2*q^3*r^3 where p, q, and r are distinct primes.at n=11A190106
• Numbers whose square is both a sum and a difference of two positive cubes.at n=21A230716
• Smallest number whose square is the sum of two positive cubes in at least n ways.at n=1A230719
• Intersection of A375055 and A376936.at n=34A378769
• Primitive coreful-infinitary abundant numbers: powerful numbers k for which A363331(k) > 2*k.at n=29A391505