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A109841 a(n) is the minimal j >= n such that the sum of consecutive integers from n to j is a palindrome. 1
1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 11, 45, 24, 19, 18, 17, 27, 29, 34, 26, 23, 22, 30, 32, 43, 31, 28, 35, 40, 44, 44, 34, 33, 45, 56, 38, 106, 39, 49, 61, 73, 50, 58, 44, 56, 48, 54, 53, 50, 51, 60, 59, 58, 57, 55, 58, 64, 63, 62, 61, 69, 72, 68, 67, 66, 66, 79, 100, 72, 71, 83, 78 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..72.

EXAMPLE

a(14)=19 because 14 + 15 + 16 + 17 + 18 + 19 = 99.

CROSSREFS

Cf. A109842.

Sequence in context: A248899 A029970 A143265 * A174234 A163807 A118766

Adjacent sequences:  A109838 A109839 A109840 * A109842 A109843 A109844

KEYWORD

base,easy,nonn

AUTHOR

Jason Earls, Jul 05 2005

STATUS

approved

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Last modified December 6 09:25 EST 2019. Contains 329791 sequences. (Running on oeis4.)