407: Idempotents - The occasional scrivener - Gustaf Erikson's blog

Monday, 2018-10-15

407: Idempotents

Got a good way just by observing patterns. Could have used Sloane to find a sequence but forgot about it. Resolved to be more thorough in the future.

Posted at 19:35, in the comp » projecteuler category.

Archives by month
Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2004	2	1	6	4	4	5	15	7	9	9	10	6
2005	5	5	7	9	1	4	8	9	4	5	3	12
2006	7	5	6	1	6	4	3	3	3	4	2	4
2007	5	8	4	5	5	7	4	2	5	2	3	2
2008	3	4	2	6	6	6	3	2	3	2	5	2
2009	3	3	3	5	6	4	4	4	7	3	6	2
2010	6	-	4	3	3	2	3	4	6	2	3	-
2011	5	2	4	3	1	2	1	3	1	11	6	2
2012	1	1	1	4	4	5	6	4	13	10	4	1
2013	3	3	2	7	2	1	6	4	2	1	3	1
2014	2	2	2	3	3	1	2	2	2	2	1	1
2015	3	3	2	1	2	2	1	3	2	3	5	5
2016	2	1	2	2	2	1	1	7	2	1	1	3
2017	9	2	7	3	6	2	3	5	2	2	2	2
2018	6	2	2	1	2	3	3	3	6	13	2	3
2019	2	2	1	2	1	1	2	2	1	2	2	4
2020	9	5	4	4	3	5	2	1	4	2	3	3
2021	8	2	8	3	3	5	1	2	2	7	3	5
2022	3	3	4	2	5	1	2	-	-	1	2	1
2023	1	2	-	2	-	1	1	1	1	1	3	2
2024	1	2	2	1	-	1	1	2	-	-	1	1
2025	-	1	2	1	-	-	-	-	-	-	-	2

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