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A031258 Position of n-th 4 in A031253. 0
8, 18, 19, 21, 31, 46, 54, 57, 60, 61, 76, 91, 93, 96, 106, 121, 129, 132, 135, 136, 137, 140, 143, 146, 149, 151, 152, 155, 158, 161, 164, 166, 167, 168, 170, 171, 184, 204, 215, 219, 223, 224, 244, 264, 267, 271, 284, 304, 315 (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: A251258 A101241 A307973 * A277557 A108060 A279688

Adjacent sequences:  A031255 A031256 A031257 * A031259 A031260 A031261

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified April 3 04:11 EDT 2020. Contains 333195 sequences. (Running on oeis4.)