cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Previous Showing 11-13 of 13 results.

A321996 Numbers that cannot be written using six 6's and operations +, -, * and/or /. Complement of A171829.

Original entry on oeis.org

22, 26, 46, 50, 51, 52, 53, 55, 56, 57, 58, 59, 61, 62, 63, 64, 68, 76, 80, 81, 82, 83, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 97, 98, 99, 100, 101, 103, 104, 105, 106, 110, 111, 112, 113, 115, 116, 117, 118, 119, 121, 122, 123, 124, 125, 127, 128, 129, 130, 131, 133, 134
Offset: 1

Views

Author

M. F. Hasler, Nov 23 2018

Keywords

Comments

A171829 contains all but 3 nonnegative integers below 50, which motivates to list the complement, even though A171829 is finite and its complement, this sequence, contains all integers above 9072 except for 15552 and 46656. (These are the last three terms of A171829.)

Crossrefs

Cf. A171829 (complement), A171826, A171827, A171828, A258068, A258069, A258070, A258071 (analog for 3, ..., 10).
Cf. A182002, A258097.

A321997 Numbers that cannot be written using seven 7's and operations +, -, * and/or /. Complement of A258068.

Original entry on oeis.org

38, 66, 67, 68, 73, 74, 75, 76, 79, 80, 81, 87, 88, 108, 109, 115, 116, 117, 118, 121, 122, 123, 124, 125, 127, 128, 129, 130, 131, 132, 134, 135, 136, 137, 138, 142, 143, 151, 152, 156, 157, 158, 159, 160, 162, 163, 164, 165, 166, 167, 169, 170, 173, 174, 176, 177, 178, 179
Offset: 1

Views

Author

M. F. Hasler, Nov 23 2018

Keywords

Comments

A258068 contains most nonnegative integers below 115, which motivates listing the complement, even though A258068 is finite and its complement, this sequence, contains all integers above 134456 except for 235298 and 823543. (These are the last three terms of A258068.)

Crossrefs

Cf. A258068 (complement), A171826, A171827, A171828, A171829, A258069, A258070, A258071 (analog for 3, ..., 10).
Cf. A182002, A258097.

A321998 Numbers that cannot be written using eight 8's and operations +, -, * and/or /. Complement of A258069.

Original entry on oeis.org

91, 93, 101, 107, 109, 115, 141, 147, 149, 155, 157, 163, 166, 173, 174, 178, 179, 205, 206, 210, 211, 214, 218, 221, 222, 223, 226, 227, 229, 230, 231, 233, 234, 235, 236, 237, 243, 245, 251, 261, 267, 269, 275, 276, 277, 278, 279, 281, 282, 283, 285, 286, 287, 290, 291
Offset: 1

Views

Author

M. F. Hasler, Nov 23 2018

Keywords

Comments

A258069 contains all nonnegative integers up to 90, which motivates to list the complement, even though A258069 is finite and its complement, this sequence, contains all integers above 2359296 except for 4194304 and 16777216. (These are the last three terms of A258069.)

Crossrefs

Cf. A258069 (complement), A171826, A171827, A171828, A171829, A258068, A258070, A258071 (analog for 3, ..., 10).
Cf. A182002, A258097.
Previous Showing 11-13 of 13 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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