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A316840
Indices of 3's in A254990.
5
7, 22, 36, 51, 63, 78, 92, 107, 115, 130, 144, 159, 171, 186, 200, 215, 230, 244, 259, 271, 286, 300, 315, 323, 338, 352, 367, 379, 394, 408, 423, 437, 452, 464, 479, 493, 508, 516, 531, 545, 560, 572, 587, 601, 616, 631, 645, 660, 672, 687, 701, 716, 724, 739, 753, 768, 780, 795, 809, 824
OFFSET
1,1
LINKS
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 22 2018
STATUS
approved