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URL: https://oeis.org/A307130

⇱ A307130 - OEIS

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A307130
Sequence associated to A307129. The terms of the sequence are the successive sums of the successive pairs of adjacent terms of A307129.
1
30, 50, 70, 72, 50, 52, 70, 92, 90, 301, 270, 30, 32, 30, 50, 70, 74, 70, 90, 181, 210, 301, 270, 181, 210, 301, 270, 181, 210, 301, 270, 181, 210, 3010, 3018, 301, 290, 1092, 1090, 1092, 1090, 1092, 1090, 1290, 3030, 3050, 3052, 3030, 3032, 3030, 3032, 3030, 3050, 3070, 3090, 3092, 3070, 3072, 3070, 3090, 5070, 5072, 3090, 3250, 3030, 3050, 3052, 3030, 3032, 3030, 3032, 3030, 3050, 3070, 3090, 3092, 3070, 3072, 3070, 3090, 5070, 5072, 3090, 5050, 5070, 5090, 5092, 5070, 5072, 5070, 5090, 5292, 5070, 5072, 5070, 5090, 5490, 5070, 5072
OFFSET
1,1
COMMENTS
The digits of this sequence follow the pattern odd/even/odd/even... as do the digits of the sequence A307129.
A307129 and this sequence need a lot of backtracking to be computed; this means that the last few terms of A307129 and of this sequence might evolve. However, the first 100 terms proposed here seem accurate.
CROSSREFS
Cf. A307129.
Sequence in context: A272949 A271998 A365965 * A379901 A228097 A075285
KEYWORD
base,nonn
AUTHOR
Eric Angelini and Lars Blomberg, Mar 26 2019
STATUS
approved