18008

Appears in sequences

• Let (u1,u2) be successive untouchable numbers such that phi(u1) = phi(u2); sequence gives values of u2.at n=37A048190
• n+p(n)+p(p(n)) is a palindrome, where p(n) denotes the n-th prime.at n=31A116037
• a(n) = Least i in range [A165598(n),A165598(n+1)] for which abs(A165597(i)) gets the maximum value in that range.at n=29A165599
• Apply partial sum operator 4 times to primes.at n=13A178138
• Magnetic Tower of Hanoi, total number of moves, generated by a certain algorithm, yielding a "forward moving" non-optimal solution of the [NEUTRAL ; NEUTRAL ; NEUTRAL] pre-colored puzzle.at n=10A183125
• The maximum possible value for the apex of a triangle of numbers whose base consists of a permutation of the numbers 0 to n, and each number in a higher row is the sum of the two numbers directly below it.at n=11A189390
• Number of partitions of n with difference -7 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=47A242685
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 798", based on the 5-celled von Neumann neighborhood.at n=31A273571