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A220502
spt(7n+5) where spt(n) = A092269(n).
3
14, 238, 1820, 10486, 48692, 196168, 706671, 2335760, 7185780, 20832168, 57385734, 151261320, 383516700, 939524019, 2231714982, 5155845968, 11614187984, 25565740130, 55096236664, 116437751108, 241655216355, 493152387294, 990688365380
OFFSET
0,1
COMMENTS
a(n) is divisible by 7 (see A220507).
FORMULA
a(n) = A092269(A017041(n)).
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Jan 18 2013
STATUS
approved