a(n) is the number of multisets of n positive decimal digits where the sum of the digits equals the product of the prime digits.

A384505

a(n) is the number of multisets of n positive decimal digits where the sum of the digits equals the product of the prime digits.

Terms

    a(0) =5a(1) =1a(2) =1a(3) =3a(4) =13a(5) =20a(6) =31a(7) =51a(8) =74a(9) =106a(10) =144a(11) =188a(12) =248a(13) =331a(14) =433a(15) =535a(16) =668a(17) =812a(18) =993a(19) =1206a(20) =1435a(21) =1704a(22) =1991a(23) =2319a(24) =2688a(25) =3084a(26) =3529a(27) =3993a(28) =4514a(29) =5072

External references