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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
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
0,2
COMMENTS
This could also be regarded as an irregular triangle read by rows.
EXAMPLE
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.
Sequence in context: A096997 A187480 A081694 * A145395 A049692 A047839
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, Jul 25 2022
STATUS
approved