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A031091 Position of n-th 3 in A031087. 0
3, 15, 33, 46, 48, 50, 51, 52, 54, 56, 58, 60, 62, 69, 87, 105, 123, 141, 162, 189, 216, 235, 238, 241, 243, 244, 247, 250, 253, 256, 259, 270, 297, 324, 351, 378, 405, 432, 459, 478, 481, 484, 486, 487, 490, 493, 496, 499, 502 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..49.

CROSSREFS

Sequence in context: A152813 A184235 A086381 * A211441 A086380 A324303

Adjacent sequences:  A031088 A031089 A031090 * A031092 A031093 A031094

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 2 20:53 EDT 2022. Contains 357230 sequences. (Running on oeis4.)