A110029 - OEIS

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A110029

a(n) is the minimal c >= n such that the sum of consecutive integers from n to c is a Niven number.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 12, 14, 16, 17, 19, 19, 18, 21, 20, 21, 23, 25, 24, 29, 28, 27, 32, 31, 30, 32, 37, 35, 38, 37, 36, 39, 40, 41, 40, 43, 42, 45, 46, 45, 49, 49, 48, 51, 50, 53, 56, 55, 54, 56, 58, 60, 59, 61, 60, 65, 66, 63, 66, 67, 67, 68, 70, 71, 70, 73, 72

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OFFSET

1,2

LINKS

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

EXAMPLE

a(25)=29 because 25 + 26 + 27 + 28 + 29 = 135 and 135/9 = 15.

CROSSREFS

Cf. A005349, A110030, A110031.

Sequence in context: A235027 A337304 A325402 * A302027 A302028 A367600

Adjacent sequences: A110026 A110027 A110028 * A110030 A110031 A110032

KEYWORD

base,easy,nonn

AUTHOR

Jason Earls, Jul 08 2005

STATUS

approved