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 A350302 Irregular triangle read by rows: The n-th row lists the larger number in each "n-th power friendship", that is, numbers k such that digsum(digsum(k^n)^n) = k and digsum(k^n) < k. 2
 16, 28, 27, 29, 34, 47, 55, 62, 65, 73, 80, 127, 70, 121, 136, 181, 117, 130, 153, 153, 160, 161, 176, 181, 184, 187, 189, 198, 208, 221, 235, 193, 252, 190, 233, 220, 247, 220, 254, 257, 259, 277, 279, 289, 263, 319, 261, 331, 260, 297, 316, 280, 304, 313 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,1 LINKS EXAMPLE Triangle begins: 16; 28; 27; 29, 34; ; 47, 55, 62, 65; 73; 80; ; ; 127; 70, 121, 136, 181; 117, 130; 153; 153, 160; ... CROSSREFS Cf. A007953, A350300, A350301. Sequence in context: A302553 A300132 A101857 * A184039 A212051 A166595 Adjacent sequences: A350299 A350300 A350301 * A350303 A350304 A350305 KEYWORD nonn,base,tabf AUTHOR Daniel Carter, Dec 23 2021 STATUS approved

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Last modified March 23 17:34 EDT 2023. Contains 361449 sequences. (Running on oeis4.)