51493
domain: N
Appears in sequences
- Crystal ball sequence for hexagonal close-packing.at n=24A007202
- Strong pseudoprimes to base 89.at n=26A020315
- Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 4 6 or 7.at n=12A252426
- Zeroless analog of tribonacci numbers.at n=46A371911