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A031257 Position of n-th 3 in A031253. 0
2, 12, 13, 15, 17, 22, 37, 48, 51, 52, 67, 82, 84, 87, 90, 97, 98, 101, 104, 107, 110, 112, 113, 116, 119, 122, 123, 125, 126, 127, 128, 131, 134, 142, 157, 159, 162, 165, 172, 192, 207, 211, 212, 232, 252, 255, 259, 263, 272, 292 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..50.

CROSSREFS

Sequence in context: A028424 A175270 A037311 * A182271 A178362 A299961

Adjacent sequences:  A031254 A031255 A031256 * A031258 A031259 A031260

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified October 27 10:47 EDT 2021. Contains 348274 sequences. (Running on oeis4.)