A182833 Joint-rank array of the numbers j*e^(i-1), read by antidiagonals.

1, 2, 3, 4, 7, 10, 5, 12, 21, 30, 6, 15, 34, 61, 84, 8, 19, 44, 94, 170, 232, 9, 24, 55, 124, 257, 466, 635, 11, 28, 68, 155, 342, 702, 1272, 1731, 13, 32, 79, 188, 427, 935, 1912, 3465, 4711, 14, 37, 91, 219, 515, 1169, 2548, 5201, 9426, 12814, 16, 41, 103, 251

Offset: 1

Author

Clark Kimberling, Dec 07 2010

Keywords

• nonn
• tabl

Comments

Joint-rank arrays are defined in the first comment at A182801. (Column 1)=A117869. Every positive integer occurs exactly once, so that as a sequence, A182833 is a permutation of the positive integers.

Examples

			Northwest corner:
1....2....4....5....6...
3....7...12...15...19...
10..21...34...44...55...
30..61...94..124..155...
		

Crossrefs

Cf. A182801.

Formula

T(i,j)=SUM{floor(j*e^(i-n)): n>=1}.