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3, 7, 11, 12, 16, 20, 24, 25, 29, 33, 37, 38, 39, 43, 47, 51, 52, 56, 60, 64, 65, 69, 73, 77, 78, 79, 83, 87, 91, 92, 96, 100, 104, 105, 109, 113, 117, 118, 119, 120, 124, 128, 132, 133, 137, 141, 145, 146, 150, 154, 158, 159, 160, 164, 168, 172, 173, 177, 181, 185
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| Shape sequence for A055938 is A001511; shape sequence for a(n) is A051064; A001511, A051064 and A055457 are p-adic valuations for p = 2, 3 & 5.
Also n! never ends in this many 0's in bases 3 and 6 - Carl R. White (oeisfan(AT)phodd.net), Jan 21 2008
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EXAMPLE
| A004128 begins 0 1 2 4 5 6 8 9 10 13 14 15 ... therefore a(n) begins 3 7 11 12 16 20 24 25 ...
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MAPLE
| b:=n->sum(floor(3*n/3^k), k=1..n): {seq(n, n=0..222)} minus {seq(b(n), n=0..150)}; (Deutsch)
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CROSSREFS
| Cf. A055457, A086343.
Sequence in context: A076184 A135137 A055050 * A104534 A062823 A031466
Adjacent sequences: A096343 A096344 A096345 * A096347 A096348 A096349
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KEYWORD
| easy,nonn
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AUTHOR
| Alford Arnold (Alford1940(AT)aol.com), Aug 04 2004
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EXTENSIONS
| More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Dec 09 2004
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