87615
domain: N
Appears in sequences
- Numbers k that have no zero digits and such that both k+1 and (product of digits of k) + 1 are squares.at n=23A081990
- Integer part of the area of circles with prime radii.at n=38A097427
- a(n) = 64*n^2 - 1.at n=36A158684
- The average of primes dividing n and n+1 is the same.at n=4A227754
- Numbers k such that s(k) = s(k+1), where s(k) is A059975.at n=31A327250