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A098211 Start with the first n, which means: "Prolong the sequence with n digits, all having their parity opposite to that of n". Then read and obey the second n, then the third n, etc. The digits produced by the rule are concatenated so to build the slowest increasing sequence. 0
1, 2, 3, 5, 6, 8, 20, 22, 24, 31, 33, 35, 37, 39, 51, 53, 55, 57, 59, 71, 73, 75, 77, 79, 91, 111, 113, 115, 117, 119, 131, 133, 135, 137, 139, 151, 153, 155, 157, 159, 171, 200, 202, 204, 206, 208, 220, 222, 224, 226, 228, 240, 242, 244, 246, 248, 260, 262, 264 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
The first term, "1", means: "Add 1 even digit to the sequence" - thus we write "2". We must now read and obey this "2": "Add 2 odd digits to the sequence" - thus we write 3 and 5. We will then write 3 even digits, followed by 5 even digits (altogether 8 even digits which will be concatenated, if necessary, thus "6 to "24", etc.
CROSSREFS
Sequence in context: A194626 A275323 A128994 * A349792 A218013 A287876
KEYWORD
base,easy,nonn
AUTHOR
Eric Angelini, Oct 25 2004
STATUS
approved

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Last modified June 23 22:09 EDT 2024. Contains 373661 sequences. (Running on oeis4.)