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A329796
Running totals in A329544.
4
1, 4, 2, 7, 3, 22, 33, 11, 5, 22, 8, 0, 7, 22, 6, 33, 9, 22, 4, 33, 7, 44, 77, 33, 5, 44, 8, 33, 3, 44, 6, 55, 9, 44, 4, 55, 7, 66, 111, 101, 33, 1, 22, 2, 11, 66, 8, 55, 5, 66, 6, 77, 11, 88, 111, 99, 11, 202, 303, 414, 505, 393, 424, 505, 626, 757, 898, 828, 696, 616, 494, 404, 262, 88, 131, 77, 5
OFFSET
1,2
COMMENTS
By construction this is always >= 0 and a palindrome.
For n <= 50000 only two 0 terms have appeared, at n = 12 and 1002.
a(n) = a(n-1) +- A329544(n), using - if A329544(n) is even and otherwise +.
LINKS
CROSSREFS
Cf. A329544.
Sequence in context: A123684 A180076 A169756 * A002949 A197026 A334417
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 10 2019
STATUS
approved