67688

Appears in sequences

• Sort then Add, a(1)=5.at n=16A033894
• Sort then Add, a(1)=31.at n=13A033905
• Sort then Add, a(1)=20.at n=14A033906
• Row sums of triangle A054453.at n=16A054455
• a(n) = 22*a(n - 2) + 54*a(n - 3) + 38*a(n - 4).at n=8A122503
• Expansion of e.g.f. Product_{k>=1} (1 + x^k/k)/(1 - x^k/k).at n=7A305199
• a(n) is the sum of the terms of the symmetric square array defined by M(i,j) = prime(i)+i-j for i >= j and M(i,j) = M(j,i) if i < j.at n=28A308731
• Numbers k whose trajectory under the Reverse and Add! operation carried out in base 16 does not reach a palindrome and (presumably) does not join the trajectory of any term m < k.at n=36A344119