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 A048533 a(n) is the smallest value of m such that A002378(m), the m-th oblong number, contains exactly n 2's. 10
 1, 16, 141, 458, 1458, 10593, 36458, 471933, 471404, 3496458, 14930593, 149072541, 471446966, 149071198, 14907133333, 114989226548, 471404524016 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Eric Weisstein's World of Mathematics, Pronic Number EXAMPLE From Jesse Sealand, Oct 06 2019: (Start) a(1) = 1 since A002378(1) = 2; a(2) = 16 since A002378(16) = 272; a(3) = 141 since A002378(141) = 20022; a(4) = 458 since A002378(458) = 210222, etc. (End). CROSSREFS Cf. A048534, A002378. Cf. A048529, A048531, A048535, A048537, A048539, A048541, A048543, A048545, A048547. Sequence in context: A300878 A301488 A232311 * A303145 A213349 A336239 Adjacent sequences:  A048530 A048531 A048532 * A048534 A048535 A048536 KEYWORD nonn,base,more AUTHOR Patrick De Geest, May 15 1999 EXTENSIONS a(15)-a(16) from Lars Blomberg, Jun 10 2011 Name edited by Jesse Sealand, Oct 06 2019 a(17) from Giovanni Resta, Oct 09 2019 STATUS approved

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Last modified October 29 07:22 EDT 2020. Contains 338066 sequences. (Running on oeis4.)