40495
domain: N
Appears in sequences
- a(n) is least k such that k and 10k are anagrams in base n (written in base 10).at n=3A023102
- Numbers k such that k concatenated with k+1 is a square.at n=6A030465
- Numerators of continued fraction convergents to sqrt(944).at n=10A042826
- a(n) = n^3 + n^2 + n + 1.at n=34A053698
- Concatenating n with n+1 (in base 10) gives a number which is the product of 2 palindromes.at n=23A113942
- Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 6.at n=14A116106
- Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 4.at n=10A116136
- Numbers n such that phi(n)=2*phi(n-1).at n=32A171271
- a(n) = (34^n - 1)/33.at n=4A218737
- Number of third differences of arrays of length 5 of numbers in 0..n.at n=33A228261
- The least common multiple of 1+n and 1+n^2.at n=34A281660
- p-INVERT of the Lucas numbers (A000032), where p(S) = 1 - S - S^2.at n=7A289782
- Number of n X 2 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.at n=10A295346
- a(n) is the arithmetic mean of all multiplicative arithmetic functions f(n) with f(p^e) returning a monic degree 3 Littlewood polynomial of p.at n=33A386704