A330314 Running totals in A330313.

1, 4, 2, 13, 20, 16, 10, 2, 23, 28, 16, 2, 91, 100, 82, 56, 40, 20, 10, 23, 40, 16, 91, 130, 100, 68, 91, 142, 173, 151, 194, 160, 112, 68, 40, 4, 23, 52, 10, 91, 23, 56, 91, 160, 100, 28, 91, 164, 112, 56, 16, 121, 182, 112, 28, 121, 212, 130, 80, 121, 23, 68, 121, 224, 160, 82, 28, 151, 23

Offset: 1

Author

N. J. A. Sloane, Dec 11 2019

Keywords

• nonn
• look
• base

Comments

By construction this is always >= 0 and a palindrome in base 3.

a(n) = a(n-1) +- A330313(n), using - if A330313(n) is even and otherwise +.

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..50000 (first 1000 terms from N. J. A. Sloane)
• Rémy Sigrist, Scatterplot of the first 1000000 terms

Crossrefs

Cf. A330313; A329544, A329796.