67673

Appears in sequences

• Numbers n such that n=prime(P)+sigma(P), where P is product of digits of n.at n=1A164322
• Partial sums of A193911.at n=21A193912
• Number of zero-sum -n..n arrays of 4 elements with first and second differences also in -n..n.at n=39A201875
• Number of 4 X n 0..2 arrays with horizontal differences mod 3 never 1, vertical differences mod 3 never -1, and rows and columns lexicographically nondecreasing.at n=22A229447
• a(n) = (a(n-4) + a(n-1) * a(n-7)) / a(n-8), a(0) = a(1) = ... = a(7) = 1.at n=33A275174
• 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=33A344119
• Odd numbers k that can be factored to such a pair of coprime factors x and y that A347381(k) < min(A347381(x), A347381(y)).at n=31A347390
• G.f.: Sum_{k>=0} x^k * Product_{j=1..2*k} (1 + x^j)/(1 - x^j).at n=27A385088