A113167 Triangle read by rows; n-th row begins with n and contains n primes greater than n and not already used.

0, 1, 2, 2, 3, 5, 3, 7, 11, 13, 4, 17, 19, 23, 29, 5, 31, 37, 41, 43, 47, 6, 53, 59, 61, 67, 71, 73, 7, 79, 83, 89, 97, 101, 103, 107, 8, 109, 113, 127, 131, 137, 139, 149, 151, 9, 157, 163, 167, 173, 179, 181, 191, 193, 197, 10, 199, 211, 223, 227, 229, 233, 239, 241, 251

Offset: 0

Author

Parthasarathy Nambi, Jan 05 2006

Keywords

• nonn
• tabl
• easy

Comments

This is just the prime number sequence with the integer sequence inserted at triangular number positions. - R. J. Mathar, Aug 29 2007

Examples

			0
1 2
2 3 5
3 7 11 13
4 17 19 23 29
5 31 37 41 43 47
		

Links

• Harvey P. Dale, Table of n, a(n) for n = 0..1000
• Chris Caldwell, The First 1000 primes.

Crossrefs

Cf. A113031.

Programs

Mathematica

With[{nn=10},Join[{0},Flatten[Thread[{Range[nn],TakeList[Prime[Range[(nn(nn+1))/2]],Range[nn]]}]]]] (* Harvey P. Dale, Jan 30 2025 *)

Extensions

More terms from R. J. Mathar, Aug 29 2007