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A281783
a(n)=index of first term of n-th run of consecutive terms in arithmetic progression in A281579.
2
1, 2, 3, 5, 7, 9, 12, 16, 19, 21, 23, 25, 27, 30, 34, 39, 45, 50, 54, 57, 60, 63, 65, 66, 67, 68, 70, 73, 76, 79, 82, 86, 91, 97, 104, 110, 115, 119, 122, 124, 126, 128, 130, 132, 134, 136, 139, 143, 148, 154, 161, 167, 172, 176, 179, 182, 185, 188, 192, 197
OFFSET
1,2
COMMENTS
This sequence is strictly increasing.
For any n>0, a(n+1)=index of last term of n-th run of consecutive terms in arithmetic progression in A281579.
LINKS
FORMULA
a(n)=2-n+Sum_{k=1..n-1} A281579(k) for any n>0.
CROSSREFS
Cf. A281579.
Sequence in context: A133231 A235111 A228896 * A224854 A074752 A039825
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Jan 29 2017
STATUS
approved