49230
domain: N
Appears in sequences
- Number of (n,4) Freiman-Wyner sequences.at n=12A097926
- Number of (w,x,y) with all terms in {0,...,n} and the numbers w,x,y,|w-x|,|x-y| distinct.at n=39A213490
- Sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1.at n=34A228126
- Number of defective 4-colorings of an n X 1 0..3 array connected horizontally, antidiagonally and vertically with exactly two mistakes, and colors introduced in row-major 0..3 order.at n=10A229665
- Number of (6+2) X (n+2) 0..3 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=30A252725
- Starts of runs of 3 consecutive Niven numbers in base 2 (A049445).at n=23A330932
- Numbers k such that A001414(k+1) = A001414(k)+1 and A001414(k)^2+3*A001414(k)+1 is prime.at n=15A352581