34452

Appears in sequences

• Numbers k such that 2^k - 3 is prime.at n=42A050414
• Treated as strings, phi(n) is a substring of sigma(n).at n=29A074452
• Numbers n such that sigma(n) = 10*phi(n) (where sigma=A000203, phi=A000010).at n=10A171256
• a(n+1) = prime(n + a(n)) - prime(n), a(1) = 1.at n=8A261518
• a(n) = A273059(4n+2).at n=32A275918
• a(n) = number of edges in a concertina n-cube.at n=6A300693
• Triangle read by rows: T(n, n-k) = number of k-faces of the concertina n-cube.at n=26A300700
• a(n) = 3*(n+1)*(9*n+4).at n=35A304503
• a(0) = 1, a(1) = 3, a(n) = 3*n*a(n-1) + 2*a(n-2).at n=5A305460
• Those primitive elements of A337386 that have exactly one primitive nondeficient divisor (A006039).at n=13A341604
• Triangle read by rows: T(n,k) = A(k,n-k), 1 <= k < n, 2 <= n, where A(m,n) is the number of distinct strings consisting of one X, m+n-1 Y's and m+n-1 Z's in which the X lies to the right of at least m Y's and at least m Z's.at n=22A351585