A095749 Square array A(row>=1, col>=1) by antidiagonals: A(r,c) contains the c:th prime p for which A037888(p)=(r-1).

3, 5, 2, 7, 11, 43, 17, 13, 53, 151, 31, 19, 71, 179, 599, 73, 23, 79, 233, 683, 2111, 107, 29, 83, 241, 739, 2143, 8543, 127, 37, 101, 271, 797, 2503, 9103, 33023, 257, 41, 109, 311, 853, 2731, 9623, 33151, 131839, 313, 47, 113, 331, 937, 3011, 10427, 33599, 135647, 531071

Offset

1,1

Links

Table of n, a(n) for n=1..55.

Example

a(1) = A(1,1) = 3 (11 in binary) as it is the first prime whose binary expansion is palindromic. a(2) = A(1,2) = 5 (101 in binary) as it is the second prime whose binexp is palindromic. a(3) = A(2,1) = 2 (10 in binary) as it is the first prime whose binexp needs a flip of just one bit to become palindrome. a(4) = A(1,3) = 7 (111 in binary) as it is the third prime whose binexp is palindromic. a(5) = A(2,2) = 11 (1011 in binary) as it is the second prime whose binexp needs a flip of just one bit to become palindrome.

Crossrefs

Row 1: A016041, 2: A095743, 3: A095744, 4: A095745, 5: A095746. Cf. also A095759. A095747-A095748. Permutation of primes (A000040).

Sequence in context: A120837 A208754 A180077 * A137988 A258367 A160092

Adjacent sequences: A095746 A095747 A095748 * A095750 A095751 A095752

Keyword

nonn,tabl

Author

Antti Karttunen, Jun 12 2004

Status

approved