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.

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A163239 Transpose of array A163237.

Original entry on oeis.org

0, 3, 1, 15, 2, 5, 12, 14, 6, 4, 60, 13, 10, 7, 20, 63, 61, 9, 11, 23, 21, 51, 62, 57, 8, 27, 22, 17, 48, 50, 58, 56, 24, 26, 18, 16, 240, 49, 54, 59, 40, 25, 30, 19, 80, 243, 241, 53, 55, 43, 41, 29, 31, 83, 81, 255, 242, 245, 52, 39, 42, 45, 28, 95, 82, 85, 252, 254, 246
Offset: 0

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Author

Antti Karttunen, Jul 29 2009

Keywords

Comments

The top left 8x8 corner of this array
+0 +3 15 12 60 63 51 48
+1 +2 14 13 61 62 50 49
+5 +6 10 +9 57 58 54 53
+4 +7 11 +8 56 59 55 52
20 23 27 24 40 43 39 36
21 22 26 25 41 42 38 37
17 18 30 29 45 46 34 33
16 19 31 28 44 47 35 32
corresponds with Adamson's "H-bond codon-anticodon magic square" (see page 287 in Pickover's book):
CCC CCU CUU CUC UUC UUU UCU UCC
CCA CCG CUG CUA UUA UUG UCG UCA
CAA CAG CGG CGA UGA UGG UAG UAA
CAC CAU CGU CGC UGC UGU UAU UAC
AAC AAU AGU AGC GGC GGU GAU GAC
AAA AAG AGG AGA GGA GGG GAG GAA
ACA ACG AUG AUA GUA GUG GCG GCA
ACC ACU AUU AUC GUC GUU GCU GCC
when the base-triples are interpreted as quaternary (base-4) numbers, with the following rules: C = 0, A = 1, G = 2, U = 3.

References

  • Clifford A. Pickover, The Zen of Magic Squares, Circles, and Stars: An Exhibition of Surprising Structures across Dimensions, Princeton University Press, 2002, pp. 285-289.

Crossrefs

Inverse: A163240. a(n) = A163241(A163235(n)). Transpose: A163237. Cf. A147995.

A163238 Inverse permutation to A163237.

Original entry on oeis.org

0, 1, 4, 2, 6, 3, 7, 11, 24, 18, 12, 17, 9, 13, 8, 5, 28, 21, 29, 37, 10, 15, 22, 16, 31, 39, 30, 23, 58, 48, 38, 47, 112, 98, 84, 97, 73, 85, 72, 61, 40, 49, 60, 50, 70, 59, 71, 83, 35, 43, 34, 27, 62, 52, 42, 51, 32, 25, 33, 41, 14, 19, 26, 20, 120, 105, 121, 137, 78
Offset: 0

Views

Author

Antti Karttunen, Jul 29 2009

Keywords

Crossrefs

Inverse: A163237. a(n) = A163234(A163241(n)). Cf. A163240.
Showing 1-2 of 2 results.