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 A045525 n! has initial digit '6'. 18
 3, 13, 18, 24, 43, 49, 72, 120, 130, 138, 174, 178, 182, 193, 203, 227, 263, 270, 290, 309, 311, 313, 315, 317, 319, 321, 355, 364, 371, 378, 390, 395, 400, 405, 418, 426, 437, 457, 460, 463, 466, 469, 491, 501, 511, 518, 525, 536, 555, 559, 563, 567, 571 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Chai Wah Wu, Table of n, a(n) for n = 1..10000 MATHEMATICA Select[ Range[ 600 ], IntegerDigits[ #! ] [ [1] ] == 6 & ] PROG (PARI) isok(n) = digits(n!)[1] == 6; \\ Michel Marcus, Feb 08 2017 CROSSREFS For factorials with initial digit d (1 <= d <= 9) see A045509, A045510, A045511, A045516, A045517, A045518, A282021, A045519; A045520, A045521, A045522, A045523, A045524, A045525, A045526, A045527, A045528, A045529. See also A000142. Sequence in context: A273946 A070518 A263182 * A030774 A024685 A024474 Adjacent sequences:  A045522 A045523 A045524 * A045526 A045527 A045528 KEYWORD nonn,base AUTHOR STATUS approved

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Last modified January 19 20:12 EST 2019. Contains 319310 sequences. (Running on oeis4.)