67475

Appears in sequences

• n times n+4 gives the concatenation of two numbers m and m-6.at n=3A116248
• Integer k associated with the conjectured record-breaking length A226670(n) of primitive Collatz-like 3x+k cycles.at n=28A226671
• Integer k associated with the conjectured record-breaking number A226673(n) of odd elements in a primitive Collatz-like 3x+k cycle.at n=25A226674
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 721", based on the 5-celled von Neumann neighborhood.at n=36A273447
• Let P1>=5, P2, P3 be consecutive primes, with P2-P1=2. a(n)=(P1+P2)/12 when P3-P2 sets a record.at n=16A329160
• Let P1 >= 5, P2, P3 be consecutive primes, with P2 - P1 = 2. a(n) = (P1 + P2)/12 for the first occurrence of (P3 - P2)/2 = n.at n=43A329252
• 6*a(n) + 1 is the least upper prime p of a pair of twin primes p - 2, p, for which the prime gap immediately following p achieves the size 2*A007494(n).at n=29A337436