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A067678
Numbers m such that sigma(4*m+3) = 6*m.
1
2, 8, 12, 600, 5082, 13680, 17160, 25920, 265200, 1256640, 3591600, 23919840, 42923520, 351195264, 1642291200, 12572386944, 15043279104
OFFSET
1,1
PROG
(PARI) isok(m) = sigma(4*m+3) == 6*m; \\ Michel Marcus, Feb 17 2021
CROSSREFS
Sequence in context: A001229 A298640 A120000 * A134905 A220140 A344152
KEYWORD
nonn,more
AUTHOR
Benoit Cloitre, Feb 04 2002
EXTENSIONS
a(9)-a(17) from Donovan Johnson, Feb 01 2009
STATUS
approved