The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A108319 Numbers of the form (2^i)*(3^j)*(7^k), with i, j, k >= 0. 5
 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 64, 72, 81, 84, 96, 98, 108, 112, 126, 128, 144, 147, 162, 168, 189, 192, 196, 216, 224, 243, 252, 256, 288, 294, 324, 336, 343, 378, 384, 392, 432, 441, 448, 486, 504, 512, 567 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Numbers m | 42^e with integer e >= 0. - Michael De Vlieger, Aug 22 2019 LINKS Michael De Vlieger, Table of n, a(n) for n = 1..10000 MATHEMATICA With[{n = 567}, Sort@ Flatten@ Table[2^i * 3^j * 7^k, {i, 0, Log2@ n}, {j, 0, Log[3, n/2^i]}, {k, 0, Log[7, n/(2^i*3^j)]}]] (* Michael De Vlieger, Aug 22 2019 *) CROSSREFS Cf. A051037, A003586, A003591, A003594. Sequence in context: A269804 A318400 A219174 * A177500 A018772 A134003 Adjacent sequences:  A108316 A108317 A108318 * A108320 A108321 A108322 KEYWORD nonn AUTHOR Douglas Winston (douglas.winston(AT)srupc.com), Jun 30 2005 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified January 29 16:58 EST 2020. Contains 331347 sequences. (Running on oeis4.)