443365544449
domain: N
Appears in sequences
- a(n) and floor(a(n)/2) are both squares; i.e., squares which remain squares when written in base 2 and last digit is removed.at n=9A055792
- a(n) and floor(a(n)/8) are both squares; i.e., squares that remain squares when written in base 8 and last digit is removed.at n=17A055872
- Numbers k such that k*(k - 1)/2 is a square.at n=16A055997
- Safe perfect powers: perfect powers n such that (n-1)/2 is also a perfect power.at n=8A075127
- Numbers n such that n-1 and n are a pair of consecutive powerful numbers.at n=16A078326
- Repeatedly multiply (1,0,0) by ([1,2,2],[2,1,2],[2,2,3]); sequence gives leading entry.at n=16A090390
- Consider all Pythagorean triples (X,X+1,Z) ordered by increasing Z; sequence gives Z-X values.at n=15A115599
- Duplicate of A078326.at n=16A118893
- Binomial transform of 1,0,1,0,2,0,4,0,8,0,16,...at n=32A171842
- Sin(arcsin(n)- 3 arccos(n))^2.at n=17A239609