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A347320
A344857(2*n).
2
0, 4, 42, 176, 540, 1152, 2534, 4608, 6984, 12580, 19250, 26016, 39988, 55076, 63570, 97920, 127024, 155088, 203946, 253360, 289044, 378884, 456918, 528672, 648200, 763620, 869022, 1040368, 1204196, 1318440, 1588750, 1812224, 2013132, 2329476, 2626330, 2910672, 3303804, 3687748, 4039854, 4555520, 5043000, 5471088, 6133778, 6740976, 7295760, 8090020, 8836094, 9544128, 10481296, 11384900
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
No formula is known.
LINKS
Table of n, a(n) for n=1..50.
CROSSREFS
Cf. A344857, A344866.
Sequence in context: A078288 A349455 A089551 * A220835 A157719 A280956
Adjacent sequences: A347317 A347318 A347319 * A347321 A347322 A347323
KEYWORD
nonn,more
AUTHOR
Scott R. Shannon and N. J. A. Sloane, Sep 12 2021, extended Jun 23 2025
STATUS
approved

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Last modified May 21 18:11 EDT 2026. Contains 395802 sequences.
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