117651
domain: N
Appears in sequences
- Positive numbers k such that k and 5*k are anagrams in base 8 (written in base 8).at n=28A023076
- Triangle read by rows in which the n-th row contains n distinct numbers whose sum is n^n. The numbers are terms of an arithmetic progression with a common difference 1 or 2 respectively accordingly as n is odd or even.at n=26A080524
- a(n) = Sum_{d|n} (n/d)^(d-1).at n=48A087909
- Minimal number (in decimal representation) with n nonprime substrings in base-7 representation (substrings with leading zeros are considered to be nonprime).at n=26A217107
- Semiprimes of the form n^3 + 2.at n=21A259189
- Expansion of Sum_{k>=1} x^k/(1 + k*x^k).at n=48A308367