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A225354 Numbers that can be written as sum of distinct squarefree divisors. 3
1, 2, 3, 5, 6, 7, 10, 11, 12, 13, 14, 15, 17, 19, 21, 22, 23, 26, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 46, 47, 51, 53, 55, 57, 58, 59, 60, 61, 62, 65, 66, 67, 69, 70, 71, 73, 74, 77, 78, 79, 82, 83, 84, 85, 86, 87, 89, 91, 93, 94, 95, 97, 101, 102 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A225245(a(n)) > 0.

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..1000

PROG

(Haskell)

import Data.List (findIndices)

a225354 n = a225354_list !! (n-1)

a225354_list = map (+ 1) $ findIndices (> 0) a225245_list

CROSSREFS

Cf. A225353 (complement).

Sequence in context: A336360 A102750 A317092 * A166111 A004762 A061854

Adjacent sequences:  A225351 A225352 A225353 * A225355 A225356 A225357

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, May 05 2013

STATUS

approved

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Last modified May 11 21:35 EDT 2021. Contains 343808 sequences. (Running on oeis4.)