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A178467 a(n) = n * (number of letters in n in Italian). 1

%I

%S 0,3,6,9,28,30,18,35,32,36,50,66,72,91,154,120,96,187,144,190,100,147,

%T 176,184,288,275,208,270,224,261,180,248,288,297,442,420,324,407,342,

%U 390,320,410,462,473,660,630,506,611,528,588,450,561,624,636,864,825,672,798,696,767,480,610,682,693,960,910,726,871,748,828,560,710,792,803,1110,1050,836,1001,858,948,560,810,820,830,1176,1105,860,1044

%N a(n) = n * (number of letters in n in Italian).

%C a(0) and a(3) are the only such that a(k)=k*k.

%F a(n)=A001477(n)*A026858(n).

%e a(5)=30 since 5="cinque" has 6 letters in Italian and 5*6=30.

%Y Cf. A001477, A026858.

%K nonn,word

%O 0,2

%A _Carmine Suriano_, Dec 23 2010

%E Edited by _N. J. A. Sloane_, Dec 23 2010

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Last modified August 4 14:02 EDT 2020. Contains 336201 sequences. (Running on oeis4.)