52206

Appears in sequences

• Numbers n such that A048767(n+1)=A048767(n).at n=32A048769
• Numbers k such that sopf(k) + 1 = sopf(k+1), where sopf(k) = A008472(k).at n=32A064111
• Number of n-step self-avoiding walks on a line, where step X skips X - 1 spaces.at n=21A175941
• Sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1.at n=36A228126
• Expansion of Product_{k>=1} ((1+x^k)/(1-x^k))^(3*k).at n=8A261389
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 189", based on the 5-celled von Neumann neighborhood.at n=41A270679
• 'Geobonnaci' sequence: a(1)=a(2)=1, thereafter a(n) = round( 2 * sqrt(a(n-1) * a(n-2)) ).at n=24A322332
• Numbers k such that A008475(k)+1 = A008475(k+1).at n=40A333801
• Numbers k such that A181894(k)+1 = A181894(k+1).at n=35A333802
• Products of 5 distinct primes that are sandwiched between sphenic numbers.at n=1A376929
• Numbers k such that A224787(k) - k is a square.at n=41A385238
• a(n) is the largest integer k such that there is an integer m with exactly n nonunitary prime factors and m + A005117(i) is squarefree for 1 <= i <= k.at n=28A390138