74391
domain: N
Appears in sequences
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 1), (0, 0, 1), (0, 1, -1), (1, 0, 0)}.at n=9A150109
- Numbers k such that sum of the divisors of k equals the sum of the reversals of the divisors of k. Numbers with all palindrome divisors are not in the sequence.at n=39A196677
- Number of paths in B(n) that start with a u step and end with a d step.at n=17A247471
- Centered pentagonal numbers which are products of three distinct primes.at n=28A364610