A355890 Let s(k) = A052551(k), and write down s(0) consecutive integers beginning with 0, skip one integer, continue with s(1) consecutive numbers, skip one integer, then s(2) consecutive numbers, skip one integer, then s(3) consecutive numbers, and so on.
0, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90
Offset: 0
Examples
The successive stages in the construction are: 0, 2, 4,5,6, 8,9,10, 12,13,14,15,16,17,18, 20,21,22,23,24,25,26, 28, ... The row lengths are 1,1,3,3,7,7,15,15,31,31,63,... (see A052551).
Crossrefs
Cf. A052551.
Comments