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A181557 Indices k for which A031883(k) = 2 = A000959(k+1)-A000959(k), i.e., indices of (lesser) "twin" lucky numbers. 0
1, 3, 5, 9, 13, 16, 18, 27, 29, 35, 38, 46, 49, 53, 59, 69, 75, 80, 83, 87, 90, 95, 100, 102, 106, 117, 120, 136, 138, 141, 143, 149, 151, 154, 156, 159, 164, 167, 178, 182, 185, 187, 201, 205, 211, 215, 217, 221, 227, 229, 232, 246, 248, 256, 265, 271, 283, 286 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..58.

CROSSREFS

Sequence in context: A191129 A018533 A187569 * A286058 A076052 A050556

Adjacent sequences:  A181554 A181555 A181556 * A181558 A181559 A181560

KEYWORD

nonn

AUTHOR

M. F. Hasler, Oct 31 2010

STATUS

approved

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Last modified July 20 14:23 EDT 2019. Contains 325185 sequences. (Running on oeis4.)