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A275116
Positions of 2 in A274640.
3
1, 4, 12, 19, 22, 65, 98, 123, 135, 179, 268, 284, 346, 365, 385, 534, 581, 605, 696, 750, 776, 834, 985, 1017, 1081, 1340, 1452, 1530, 1569, 1773, 1816, 1969, 2080, 2126, 2412, 2641, 2797, 2903, 2958, 3350, 3435, 3553, 3613, 3892, 4018, 4340, 4473, 4571, 4708
OFFSET
1,2
FORMULA
A274640(a(n)) = 2.
CROSSREFS
Cf. A274640.
Sequence in context: A228166 A244433 A086109 * A139388 A300746 A301190
KEYWORD
nonn
AUTHOR
Zak Seidov, Jul 17 2016
STATUS
approved